36results about How to "Observe the growth" patented technology

The invention provides meat duck stacked automatic breeding equipment which comprises cage shelf units. Each cage shelf unit comprises a head end, a tail end and a meat duck framework, wherein the head end and the tail end are arranged at the two ends of the meat duck framework respectively; meat duck cages are arranged on the meat duck framework in a stacked mode, and the meat duck framework is also provided with food troughs corresponding to the meat duck cages. Each meat duck cage comprises a bottom net, a front net, a partition net on the left side, a partition net on the right side and a detachable rear door. The two sides of each cage shelf unit are provided with channels, wherein the channel on the food trough side is a management channel, and the channel on the side opposite to the food trough is a duck-out channel. The invention further provides a meat duck cage breeding management method, wherein the go-out mode is that ducks go out of the rear sides of the cages. The meat duck stacked automatic breeding equipment is simple in structure, meat ducks raised according to the management method are high in quality and low in disability rate, and economic benefits of farmers are greatly increased.

The invention discloses an experiment device for testing operation performance of a bioretention facility. The experiment device comprises a rainwater collecting barrel, a water conveying system, a flow monitoring system, a bioretention barrel, a permeability coefficient measuring assembly and an electric telescopic rainshed. Rainwater in the rainwater collecting barrel is conveyed through a water conveying system and is sprayed into the bioretention barrel for simulating rainfall. The permeability coefficient measuring assembly is used for measuring a permeability coefficient of a filtering layer medium in a rainfall simulating process. The flow measuring system is used for recording rainwater amount which enters and is discharged from the bioretention barrel. The electric telescopic rainshed is arranged above the bioretention barrel. Through extension of the electric telescopic rainshed, entering of natural rainwater into the bioretention barrel can be prevented. The experiment device has advantages of low cost, simple operation, high data reliability, convenient acquisition and effective recyclability. The experiment device can simulate a hydrological and water quality effect of the biotention barrel on the conditions such as different rainfall types, different filler proportions and different plant kind. The related basic research has an important meaning for promoting construction of the sponge city.

The invention discloses a process for preparing nutrition-containing soilless cultivation base material which comprises, stock preparation, calcinations, acid conventional processing, purification, replacing some substance in the zeolite aperture by means of dynamic reaction, cleaning again, adsorbing potassium sulphate, boric acid and other nourishing material completely in the zeolite, cleaning again, adjusting pH by charging acid, drying and packaging.

The invention relates to a visual directional growth device and a growth method for a large-size bromine-lead-cesium single crystal. The device comprises a furnace body and a rotary descending system,wherein the furnace body comprises a quartz furnace tube and a heating device, a cavity in the quartz furnace tube is a crystal growth cavity, the heating device is arranged outside the quartz furnace tube, a heat insulation sleeve is sleeved outside the heating device of the quartz furnace tube, a crystal growth crucible is arranged in the crystal growth cavity, the bottom of the crystal growthcrucible is a seed crystal bag, and CsPbBr3 seed crystals are arranged in the seed crystal bag; and the rotary descending system comprises a long crystal rod and a driving device for driving the longcrystal rod to rotate and descend, and the seed crystal bag is fixed on the long crystal rod. The CsPbBr3 single crystal obtained by the visual directional growth device is large in size and good in crystal transparency, and the device is beneficial to discharging of impurities in the crystal growth process, and adopts a slow cooling rate to prevent the crystal from cracking.

The invention discloses a detection method for the growth state of the roots of banana temporarily-planted seedlings, comprising the following steps of: (1) selecting banana temporarily-planted seedlings transplanted into a seedling culture device from a seedbed and then culturing for 7-35 days, cutting off pseudostem parts, and performing cutting treatment in the seedling culture device to obtain the roots of the banana temporarily-planted seedlings; (2) placing the roots of the banana temporarily-planted seedlings in reaction solution containing 2,3,5-triphenyltetrazolium chloride, adjusting the temperature of a reaction to be 37+ / -2 DEG C, and culturing for 2-3 hours in a dark environment to perform colouring reaction; and (3) after the colouring reaction, placing the roots of the banana temporarily-planted seedlings in stopping solution to stop the colouring reaction, taking out the roots of the banana temporarily-planted seedlings, and detecting the colouring condition of each part of the roots of the plants, wherein the higher the ratio of the red roots to the colourless roots in the same area is, the better the growth state of the roots of the banana temporarily-planted seedlings is. By the method, the growth state of the roots of the banana temporarily-planted seedlings can be rapidly and simply detected, a plurality of middle test steps can be reduced, error can be decreased, and operation procedures can be simplified.

The invention relates to a seedling cultivation device, and particularly relates to an automatic system of a seedling incubator. The automatic system comprises a box body which serves as a support shell of the whole system, a hoisting frame lifts a cultivation plate as needed, and seedlings are located at different heights in different stages. The cultivation plate supports a support plate which serves as a main body structure for cultivating the seedlings, a positioning soft block fixes the seedlings, a cultivation hole fixes the positioning soft block and allows the seedlings to pass through, leaves and roots of the seedlings are located on the upper side and the lower side of the support plate respectively, and a nutrition channel is formed between the cultivation plate and the supportplate and provides nutrient substances for the roots of the seedlings. An illumination mechanism provides luminous energy for branches and leaves of the seedlings. The system cultivates the seedlingsby adopting different temperatures in different stages of growth, and then the seedling transplanting survival rate is increased.

The invention discloses a micro-pulling-down crystal growing furnace. The furnace comprises an upper heat-insulating layer and a bottom heat-insulating layer (13) which are arranged from top to bottom, wherein a tubular observation hole (4) is also formed in the bottom heat-insulating layer (13), and the included angle formed by the central axis of the observation hole (4) and the normal of the top surface of the bottom heat-insulating layer (13) is in a range of 45-60 degrees; each of an inner heat-insulating layer, a middle heat-insulating layer and the bottom heat-insulating layer (13) is formed by pressing and calcining zirconium oxide and aluminium oxide in the mass ratio of 1:9. According to the micro-pulling-down crystal growing furnace, the crystal growing condition of a crystal growing interface can be timely observed via the formed observation hole; besides, the effect caused by the observation hole on the temperature field of the crystal growing furnace is low, and the crystal growing yield can be further increased.

The invention relates to a visual preparation method of polymeric fibers based on a laser scanning confocal microscope. The visual preparation method is characterized by comprising the following steps of: dissolving a high polymer material into an organic solvent; adding a fluorescent dye to prepare an electrostatic spinning, thus obtaining the polymeric fibers wrapped with the fluorescent dye; dipping the prepared polymeric fibers into the water to wash to remove the fluorescent dye residual on the surface; carrying out ultraviolet sterilization; inoculating cells; marking the cells by the fluorescent dye; and observing by a laser confocal microscope. Compared with the simple cell laser confocal image, the laser confocal image prepared by the preparation method provided by the invention has the advantage that the polymeric fibers provide the support, thus the sense of space of the image is improved, and the image is much more real. By adopting the preparation method, the amount, distribution and forms of living cells on the polymeric fibers can be directly observed at the same time by utilizing the laser scanning confocal microscope; and a living cell culture chamber in match with the laser scanning confocal microscope also can be utilized, which enables the continuous and direct observation on the amount, distribution and forms of the living cells on the polymeric fibers to become possible.

The invention discloses a hydroponic system for high-throughput maize roots. The hydroponic system comprises a cylindrical sponge, a culture plate, a culture plate round hole, a hydroponic tank, a main ventilating tube and a branch ventilating tube, wherein the cylindrical sponge is used for clamping a maize seedling and then plugged into the culture plate round hole in the culture plate, and the culture plate is horizontally located on the hydroponic tank filled with a nutrient solution; the branch ventilating tube comprises an L-shaped glass tube body, a rubber tube body and a needle head; the needle head is stuck in the main ventilating tube, one end of the main ventilating tube is connected onto an air compressor, the other end of the main ventilating tube is knotted to achieve a sealed effect, and the air output amount of the air compressor is adjusted. The hydroponic system solves the problems that research of soil culture or sand culture of maize roots is difficult, maize seedlings in general hydroponic systems are not firmly fixed and are prone to falling or lodging, the seedlings cultured in general hydroponic systems are few and cannot be applied to large-scale root research, the number of oxygen supply devices in general hydroponic systems is large, and the oxygen supply amount in general hydroponic systems is uneven.

The invention discloses a seedling culture container for the cyclocarya paliurus and a seedling raising method for improving cyclocarya paliurus seedling quality. The seedling culture container for the cyclocarya paliurus comprises an inner bag and an outer bag arranged on the outer side of the outer wall of the inner bag in a sleeving mode, wherien the inner bag is a non-woven fabric bag; the outer bag is a woven cloth bag; and the non-woven fabric bag and the woven cloth bag are sleeved together, vertical openings are formed in the adjacent side walls of the non-woven fabric bag and the woven cloth bag, the non-woven fabric bag and the woven cloth bag which are located on the same side of the openings are overlapped to form a layer, and zippers are arranged along the two side edges of the openings. The seedling culture container for cyclocarya paliurus is provided with the inner bag and the outer bag; the inner bag is the non-woven fabric bag; the outer bag is the woven cloth bag; the woven cloth bag can keep moisture for plants, and the heat preservation and moisture preservation bag of the double-layer structure has good air permeability, so that air at the roots of seedlings has fluidity, accumulated water is not prone to being generated at the roots, and the roots are prevented from rotting.

The invention discloses an efficient cultivation device for agricultural seedling culture. The efficient cultivation device for agricultural seedling culture comprises a water tank base, a cultivation box is mounted on the top surface of the water tank base, support frames are symmetrically mounted on two sides in the cultivation box, water pipe frames are slidably embedded between the two support frames at equal intervals, water nozzles are mounted on the bottom surfaces of the water pipe frames at equal intervals, switching cylinders are mounted on the top surfaces of the water pipe frames at equal intervals, sliding cylinders are slidably embedded into the switching cylinders, water passing holes are formed in the top surfaces of the sliding cylinders at equal intervals, insecticide can be placed through a feeding cylinder, seedlings are uniformly sprayed through the water nozzles, branches and leaves of the seedlings are deinsectized, nutrients and moisture can be supplemented to root systems through insertion pipes, the utilization rate of fertilizers is increased, the device can efficiently and comprehensively cultivate the seedlings, the seedling cultivation effect is better, springs support clamping plates to limit driving rods, the situation that insertion pipes fall off and automatically slide into soil to affect taking out of a cultivation table is avoided, and through cooperation of insertion cones and spiral blocking pieces, fertilizers can better permeate into the soil conveniently.

The invention discloses an antibacterial latex contraceptive material provided with grafted nanoscale IFN (Interferon)-alpha, which is formed by grafting and fixing the IFN-alpha onto the surface of a latex contraceptive material. The invention also discloses a preparation method of the material, which adopts a photochemical fixing method and specifically comprises the following steps of: adding the IFN-alpha into dimethyl amide solution containing N-succinimide, agitating and reacting for 48 hours at a temperature of 4 DEG C, synthesizing the IFN-alpha with the photoactivity, smearing the IFN-alpha with the photoactivity onto the surface of the latex contraceptive material and carrying out ultraviolet radiation after shading, freezing and drying. The antibacterial latex contraceptive material provided with the grafted nanoscale IFN-alpha has the beneficial effects that IFN-alpha particles belong to nanoscale and are uniformly arranged on a latex film; the antibacterial effect is remarkably superior to that of a latex material on which the IFN-alpha is directly smeared; and the latex material provided with the grafted the IFN-alpha not only can be taken as the contraceptive material, but also can be made into other gynecological supplies and can be matched with traditional drugs to commonly prevent, even treat the inflammation of cervix.

The invention discloses a marine full-automatic bean sprout cultivating machine which comprises a shell, a full-automatic controller and an electric control box, wherein the middle of the shell is filled with a polyurethane foaming layer; the shell is divided into two parts, namely, a bean sprout cultivating chamber and a bean sprout working chamber, by a supporting spacing plate of the inner chamber of the shell; a water tank is arranged in the bean sprout working chamber; a water tank exhaust pipe, an exchangeable heater, a temperature probe, a water level electrode, a submerged pump, a submerged pump bracket, a connecting rod type floating ball liquid level valve and a floating ball are arranged in the water tank; a controller tray box is arranged above the bean sprout working chamber; the electric control box is arranged in the controller tray box; multiple sets of cultivating basket supporting frames are mounted in the bean sprout cultivating chamber; a spraying pipe is arranged above the bean sprout cultivating chamber; the spraying pipe is connected with the submerged pump through a pipeline. According to the technical scheme provided by the invention, the defects of the prior art are overcome, the demand of a ship during a sailing process is ensured, the marine full-automatic bean sprout cultivating machine is suitable for the marine high-humidity and high-corrosion environment and the inclined swinging use condition, the operation and use are flexible and convenient, and the full-automatic unmanned bean sprout cultivating production requirement is met.

The invention provides a platform type ship having a sightseeing function. The platform type ship includes a platform ship body, a power source and a control unit. The bottom of the platform ship bodyis provided with a steel pipe fixing frame, a sightseeing channel is disposed in the platform ship body, the top of the sightseeing channel is provided with an elevator room provided with a cavity, apartition plate is disposed in the cavity, the top of the partition plate is provided with a fixing frame and a motor, the fixing frame is provided with a winding roll and a rotating rod, the windingroll sleeves the rotating rod, one end of the rotating rod is mounted on an output shaft of the motor, the winding roll is sleeved with a cable, the partition plate is provided with a through hole, the bottom of the partition plate is provided with an elevator car, the top of the elevator car is provided with a top plate provided with a groove, a supporting rod is arranged in the groove, and oneend of the cable is disposed on the winding roll. The platform type ship having the sightseeing function is novel in design, reasonable in structure and safe to use, and underwater sightseeing can beperformed.

The invention discloses a multifunctional breeding chamber, which comprises a water supply device, a breeding chamber body, a power supply device and fixed moving structures. Breeding substances in breeding trays can be uniformly sprayed by spraying nozzles with vertically downward nozzle directions; by arrangement of a second filter screen and a first filter screen, excessive spraying water can be recycled to save water resources and prevent waste; by arrangement of a temperature sensor, a humidity sensor and a control panel, the internal temperature and humidity of the breeding chamber bodycan be well controlled; by ultraviolet sterilization lamps, seed surface detoxification and sterilization can be realized before seedling cultivation, and high germination rate and high germination quality of seeds are realized; by arrangement of illuminating lamps, photosynthetic conditions can be provided for seedling cultivation, and a great breeding environment is provided for seed breeding; by a solar panel for electricity accumulation of a storage battery, resource saving is realized while environmental pollution is avoided; by an observation window made of transparent tempered glass, growth conditions of the substances in the breeding chamber can be observed.

The invention provides a strawberry seedling raising frame and a method for cultivating strawberries. The strawberry seedling raising frame comprises a rack, a rotating tray assembly and a spraying assembly, wherein the rack comprises a base; first layer frames are separately vertically fixed on both sides of the base; shaft bases are respectively arranged on upper surfaces of both sides of the first layer frames; the rotating tray assembly comprises a rotating shaft, rotating discs, hanging rods and trays; the rotating shaft is arranged between the shaft bases on both sides in a penetration manner; two rotating discs are fixed at both ends of the rotating shafts and are positioned on inner sides of the shaft bases; a plurality of hanging rods are uniformly fixed on circumferences of the rotating discs on both sides; connecting parts are respectively fixed at both ends of the trays; connecting rings are fixed at the tops of the connecting parts; the trays are fixed on the hanging rodsin a sliding manner through the connecting rings; the spraying assembly comprises second layer frames which are fixed on upper sides of the first layer frames; a plurality of spraying pipelines are fixed on upper surfaces of the second layer frames; a plurality of spraying heads are arranged at bottoms of the spraying pipelines; a speed reducer is fixed on one side of the rack; the output end of the speed reducer is connected with one end of the rotating shaft; and the input end of the speed reducer is connected with a driving motor. The strawberry seedling raising frame and the method for cultivating strawberries have the advantages of being high in strawberry yield and good in quality.

The invention relates to a fruit bagging, comprising a bagging body. At least one transparent window is provided on the peripheral surface of the bagging body. With the above-mentioned structure of the fruit bagging, because of its bag on the peripheral of the surface with a transparent mounting on the opening, the farmers can observe the growth of fruit without tearing or removing the bag. The fruit bagging is convenient for observing fruits and is convenient to use.

The invention discloses a biological breeding contrast test device facilitating regulating and controlling of basic environmental factors. The biological breeding contrast test device comprises a box body, a humidity detector, a placement frame, an exhaust device and a mounting block; a water tank is fixedly mounted on the outer side surface of the box body, an air inlet pipe is mounted at one end of a transmission pump, and the humidity detector is mounted in the middle of the upper surface of a treatment box; and the placement frame is installed in the box body, the exhaust device is fixedly installed in the middle of the outer side face of a side pipe, the mounting block is arranged in the side pipe, a fixing plate is fixedly installed on the side face of the positioning rod, and a sliding rail is welded to the upper surface of the positioning rod. According to the biological breeding contrast test device facilitating regulating and controlling of the basic environmental factors, a novel structural design is adopted, so that the device can conveniently control the temperature and humidity conditions of gas in the box body and facilitates contrast observation; and the sterile exhaust structure is arranged in the device, so that the seed culture effect of the device is improved.

The invention discloses a novel intelligent bacterial colony counter with high efficiency. The novel intelligent bacterial colony counter comprises a controller, wherein a signal lamp is arranged on one side of the upper side of the controller, a digital camera is arranged on one side of the lower side of the signal lamp, an LED lamp is arranged on one side of the digital camera, a barometer is arranged on one side of the lower side of the LED lamp, a humidity sensing probe is arranged on one side of the lower side of the barometer, a temperature sensing probe is arranged on one side of the humidity sensing probe, a detection platform is arranged below the temperature sensing probe, two tension bars are arranged on two sides of the detection platform, a baffle is arranged on one side of each of the two tension bars, four telescopic rods are arranged below the detection platform, a power supply is arranged on one side of one telescopic rod, a heater is arranged on one side of the powersupply, a motor is arranged on one side of the heater, a vacuum pumping machine is arranged on one side of the motor, a condenser is arranged on one side of the vacuum pumping machine, an exhaust fanis arranged on one side of the condenser, and an electronic screen is arranged above the exhaust fan. The novel intelligent bacterial colony counter has good practicability.

The invention discloses an edible fungus culture barrel with good service performance, comprising an outer barrel, an inner barrel and a carbon dioxide absorbing device; the outer barrel is provided with a bottom plate and an upper cover, and both the bottom plate and the upper cover are releasably mounted at the outer barrel; the inner barrel is disposed in the outer barrel and is lower than the same; the carbon dioxide absorbing device is fixed to the inner wall of the upper end of the outer barrel, and the sidewall of the outer barrel is provided with a view port correspondingly above the inner barrel. The edible fungus culture barrel with good service performance facilitates the placement and removal of the inner barrel and is convenient to use and operate; it is convenient to observe the growth condition of Agrocybe cylindracea through the view port, and culture quality of Agrocybe cylindracea can be guaranteed.

The invention discloses a culturing device for culturing edible mushroom. The culturing device comprises an outer cylinder, an inner cylinder, a carbon dioxide absorption device and a fixing bolt, wherein the outer cylinder is provided with a base plate and an upper cover which are both detachably installed on the outer cylinder; the inner cylinder is placed in the outer cylinder, and is lower than the same; the carbon dioxide absorption device is fixed on the inner wall of the upper end of the outer cylinder, and a viewing port is formed in the side wall, corresponding to the upper side of the inner cylinder, of the outer cylinder; the fixing bolt passes through the side wall of the outer cylinder and is pressed against the outer wall of the inner cylinder for connecting and fixing the outer cylinder with the inner cylinder; a flange radially protruding outwards is arranged at the outer end of the inner cylinder, and the fixing bolt is tightly fit with the top surface of the flange. According to the culturing device, the inner cylinder is convenient to put in and take out, and utilization and operation are facilitated; the outer cylinder and the inner cylinder are fixed by the fixing bolt and the flange arranged at the lower end of the inner cylinder, so that structural stability is good, and utilization and transportation are facilitated; furthermore, a growing condition of agrocybe cylindracea can be conveniently observed via the viewing port, thus being beneficial to ensuing culturing quality of the agrocybe cylindracea.

The invention relates to the technical field of electromechanical equipment, and discloses an intelligent nutrient solution adding device for stem cell culture. The intelligent nutrient solution adding device comprises a shell; a first rotating shaft is movably connected inside the shell; a first connecting rod is movably connected outside the first rotating shaft; a second connecting rod is movably connected to one end, far away from the first rotating shaft, of the first connecting rod; a third connecting rod is movably connected to one end, far from the first connecting rod, of the second connecting rod; a first sliding block is movably connected to the exterior of the third connecting rod; a first sliding groove is slidably connected to the exterior of the first sliding block; a sliding rod is fixedly connected to the exterior of the first sliding groove; a supporting frame is fixedly connected to the end, away from the first sliding groove, of the sliding rod; a second rotating shaft is movably connected to the interior of the supporting frame; the exterior of the second rotating shaft is fixedly connected with a rotating disc; the exterior of the rotating disc is movably connected with a fourth connecting rod; the exterior of the fourth connecting rod is movably connected with a fifth connecting rod; the end, away from the fourth connecting rod, of the fifth connecting rod is movably connected with a second sliding block; the interior of the supporting frame is movably connected with a detection assembly; and the interior of the shell is movably connected with an electromagnetic induction assembly.

The invention relates to the technical field of livestock breeding, in particular to a breeding method of polygonum multiflorum ecological ducks. The method includes the following steps of a, constructing a duck shed; b, selecting an ecological duck stocking place, wherein a polygonum multiflorum planting site is selected, and an anti-escape fence is formed with nets or fences around and / or in the polygonum multiflorum planting site so that the independent stocking place can be separated from the polygonum multiflorum planting site; c, stocking the ecological ducks, wherein the ducks are stocked in the stocking place at the age of 30-38 days; d, marketing the ecological ducks, wherein live ducks which grow to the weight of 2.0 kg or are stocked for 3.5 months or longer can be put on the market for sales. By means of the method, large-scale breeding can be achieved, the bred ecological ducks have the advantages of being purely ecological, free of pollution, good in meat quality, good in taste, capable of having a medicine and food homology function of polygonum multiflorum and the like, and economic benefits are high.

The invention belongs to the technical field of tissue culture, and particularly relates to a substrate for tissue culture of dracocephalum rupestre hance as well as a preparation method and application thereof. The substrate for tissue culture of dracocephalum rupestre hance is prepared from the following substances with the corresponding concentration: 0.2-0.5 mg / L of BA, 0.1-0.2 mg / L of IBA, 10-20g / L of cane sugar, 5-10g / L of eleusine indica powder, 5-10g / L of agar and a liquid culture medium with 1 / 2MS serving as a solvent. The 1 / 2MS liquid culture medium, the BA and the IBA are used for providing necessary growth factors and promotion factors for the growth of the tissue of the dracocephalum rupestre hance, and the eleusine indica powder and the corn stigma powder are used for improving the growth regulation performance of the BA and the IBA, so that the tissue of the dracocephalum rupestre hance grows fast, and the seedling rate is high.

The invention discloses an oriented growth method of relaxor ferroelectric single crystal lead zinc niobate-lead titanate, and belongs to the technical field of single crystal growth. The initial raw material is prepared according to the following formula: (1-x) Pb (Zn<1 / 3>Nb<2 / 3>O<3>)-xPbTiO<3>, 0<x<0.2; the preparation method comprises the following steps: weighing and mixing the raw materials according to the chemical composition ratio, grinding, pre-sintering, melting at high temperature, cooling, putting in a seed crystal for oriented growth and the like. The method is convenient to operate, controllable in crystal nucleation direction and high in yield, high-quality and large-size PZN-PT crystals can be obtained, seed crystals cannot be dissolved, the grown crystals cannot be attached by volatile PbO, and the crystal growth condition can be visually observed from a quartz glass plate.

The invention discloses a deposition growth device for a novel glass material, and relates to the technical field of glass processing. The device comprises a platform, a plurality of connecting blocks, a mounting bracket and a glass cylinder, the lower end faces of the connecting blocks are fixedly connected with the upper surface of the platform, the upper end faces of the connecting blocks are fixedly connected with the lower surface of the mounting bracket, the mounting bracket is mounted on the peripheral side surface of the glass cylinder, and the bottom end of the mounting bracket abuts against the bottom surface of the glass cylinder. By using a second rotating shaft, the glass cylinder and the mounting bracket, the whole device is stable in operation, and the growth condition of the material at the peripheral side in the glass cylinder can be observed; through the mounting bracket and brush bristles, the brush bristles are mounted on the inner surface of the mounting bracket, and in the rotating process of the glass cylinder, the mounting bracket can enable the glass cylinder to rotate stably, and dust on the surface of the glass cylinder can be continuously cleaned through the brush bristles; and a worker can clearly observe the growth state of the internal material through the glass cylinder.