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44results about How to "No sealing issues" patented technology

Pressurized coring tool

The invention discloses a pressurized coring tool comprising a pressure bearing device, a rotating assembly and a core catcher assembly, wherein the pressure bearing device comprises a pressure bearing assembly and a pin component, the pressure bearing assembly comprises a pressure bearing piston and a pressure bearing sleeve sheathed on the pressure bearing piston, the pin component comprises a shearing pin; the rotating assembly comprises a core shaft, one end of the core shaft is provided with a rotating device, the other end of the core shaft is provided with an automatic pressure relieving assembly; and the core catcher assembly comprises a connecting sleeve, a clamp seat, a clamp, a pressurized core catcher and a self-locking core catcher, one end of the clamp seat is connected with the lower end of the connecting sleeve, the other end of the clamp seat is connected with the pressurized core catcher, the upper end of the connecting sleeve is connected with an internal cylinder assembly, the clamp is arranged in the clamp seat, and the self-locking core catcher is arranged in the pressurized core catcher. When the pressurized coring tool disclosed by the invention is used for coring, the internal cylinder of a pressurizing tool can rotate along with the rotation of a drilling tool, and the problem that a core entering into the internal cylinder breaks easily is solved.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Device for heating and refrigerating flowing liquid

The invention relates to a device for heating and refrigerating flowing liquid, and belongs to the field of temperature control systems. The device adopts a double-layer loop-shaped passage to heat or refrigerate the flowing liquid; the device is provided with a front heating plate, a rear heating plate and a middle heating plate which have the same shape and dimension; the middle heating plate is a rectangular plate; one side of the rectangular plate is processed with a front loop-shaped groove of the middle heating plate with a semicircular cross section; and the other side of the rectangular plate is processed with a rear loop-shaped groove of the middle heating plate with a semicircular cross section. The contact faces of the front heating plate and the rear heating plate towards the middle heating plate are processed with a loop-shaped groove of the front heating plate with a semicircular cross section and a loop-shaped groove of the rear heating plate with a semicircular cross section respectively; and metal hoses are positioned in the loop-shaped grooves to form the double-layer loop passage. The lateral surface of the heating plate is stuck with four semiconductor refrigerating sheets; and by heating of the heating plate, the temperature of the flowing liquid is indirectly controlled. The device has a simple structure, has no problem of liquid sealing, is convenient to maintain and realizes even and rapid heating and refrigeration of the flowing liquid.
Owner:DALIAN UNIV OF TECH

Dry distiller and oil sand pyrolysis-dry distillation system

The invention provides a dry distiller. The dry distiller comprises a barrel body and a heating device for heating up the barrel body, wherein a feeding hole is formed at one end of the barrel body; a solid outlet is formed at the other end of the barrel body; a gas outlet is formed in the barrel body; a spiral propeller is arranged in the barrel body; one end of the spiral propeller is fixed at one side, close to the feeding hole, in the barrel body. The invention further provides an oil sand pyrolysis-dry distillation system. The pyrolysis-dry distillation system can be used for propelling the oil sand to the interior of the barrel body from the charging hole by adopting the spiral propeller to carry out dry distillation and pyrolysis under the heating of the heating device, without using the inner barrel structure and outer barrel structure of the revolving reactor, so that a sealing problem does not exist, and therefore, unsafe problems such as burning oil do not exist. Meanwhile, the spiral propeller is adopted for propelling the oil sand, so that the heat provided by the heating device can be sufficiently utilized, and therefore, the dry distillation-pyrolysis effect is improved.
Owner:庆华集团新疆和丰能源化工有限公司 +1

Self-balancing type inertia damper with reciprocating screw rod

PendingCN109853764AStiffness and damping are completely separatedIncrease the damping factorProtective buildings/sheltersShock proofingMagnetElectrical conductor
The invention belongs to the technical field of energy dissipation and seismic reduction of engineering structures, and provides a self-balancing type inertia damper with a reciprocating screw rod. The self-balancing type inertia damper comprises the reciprocating screw rod, magnet discs, conductor discs, a permanent magnet, a screw rod nut and a bearing support. The self-balancing type inertia damper utilizes the characteristics that the reciprocating screw rod arranges two threads with the same pitch and opposite rotation directions on the whole stroke, and a pair of magnet discs and a pairof conductor discs are arranged in pairs, so that the action torque and the reaction torque of the eddy current effect act on the reciprocating screw rod at the same time and offset each other; on theone hand, the damping coefficient is simple and easy to adjust, the damping and the stiffness are completely separated, on the other hand, the self-balancing performance that a common spiral rotary damper does not have is achieved; and the magnet discs and the conductor discs rotate together and act on the reciprocating screw rod, the rotation effects cancel each other, the longitudinal axial force is doubled, so that the eddy current effect is doubled, and a higher damping coefficient is obtained.
Owner:TONGJI UNIV

Clothes treatment device

The invention relates to the technical field of clothes treatment, and discloses a clothes treatment device. The device comprises a rectifying device capable of generating high-frequency alternating voltage, a coil powered by the rectifying device and a rotating cylinder which is arranged in the range of a high-frequency alternating magnetic field generated by the coil and is made of a metal material, wherein the rotating cylinder in the range of the high-frequency alternating magnetic field generated by the coil generates eddy currents to be heated in the rotating process. On the basis of anelectric appliance heating principle, water, air or clothes in the rotating cylinder are heated by heating of the rotating cylinder, and thus, heating efficiency is improved; besides, the rotating cylinder is used as a component for generating heat, a traditional heater is not required to be arranged, installation space is saved, the sealing problem between a heater and the rotating cylinder is solved, and the problem of burning caused by winding of wire scraps on the heater is solved; the whole interior of the rotating cylinder generates heat, so that the heat difference among all parts on the whole rotating cylinder is not large, and the problem of too high local temperature can be solved.
Owner:QINGDAO HAIER DRUM WASHING MACHINE

One-way conduction fluid sensor

The invention belongs to the technical field of sensors and relates to a one-way conduction fluid sensor. The one-way conduction fluid sensor is characterized in that a valve seat is arranged on the inner wall of one end of a housing with a fluid channel; a valve element inlaid with a magnet block and being capable of controlling positive conduction and reverse blocking is arranged on the valve seat; a limiting rod is arranged at the tail part of the valve element; the tail end of the limiting rod points to the other end of the housing; a limiting spring seat with a fluid through hole is arranged on the inner wall of the other end of the housing; one side of a reset spring is connected to the limiting rod in a sleeving manner; the other side of the reset spring is propped against and connected to the limiting spring seat; a magnetic switch which is turned on or off by virtue of magnetic force of the magnet block when the valve element is opened or closed is arranged on the outer wall of the housing. The one-way conduction fluid sensor has the advantages as follows: the structure is simple, the manufacture cost is low, the fluid resistance is small, the leakproofness is good, the service life is long, the using performance is stable and the sensor is applicable to high voltage or ultrahigh pressure and capable of controlling fluid flowing unidirectionally.
Owner:因而克智能科技(浙江)有限公司

Electromagnetic driver unit of block type braker

The electromagnetic thruster includes a static magnet, a movable magnet, a coil, and a push rod. The static magnet possesses a cone part, where there is a cone-shaped trough in the center. The movable magnet possesses a cone-shaped trough for the cone part of the static magnet to be placed in. there is a cone-shaped body possible to be placed to the cone-shaped trough of the movable magnet in middle part at bottom of the cone-shaped trough. The static magnet and the movable magnet can be inserted and jointed. The disclosed thruster simplifies structure of brake, and reduces volume and weight of brake. Comparing with electro hydraulic thruster integrated with electric hydraulic pressure i.e. centrifugal pump, the thruster possesses features: (1) no need of sealing oil way; (2) no problem of low temperature in oil way; (3) reduced part of second lever ratio, size and weight; (4) the smaller of travel, and the larger of thrust; (5) more energy saving and longer service life.
Owner:杨广明

Water flow direction fixing pipeline hydroelectric module and system and power generation method

The invention discloses a water flow direction fixing pipeline hydroelectric module and a system and a power generation method, and belongs to the field of fluid dynamics. The water flow direction fixing pipeline hydroelectric module is characterized in that the water flow direction fixing pipeline hydroelectric module comprises a swinging following pipe, a power generation assembly (permanent magnets / coils or pressing rods / piezoelectric modules), a semi-flexible supporting member (elastic bellows or spring structures or annular double magnet structures with the same polarity being arranged upand down) and a fixing base provided with mounting holes. According to the water flow direction fixing pipeline hydroelectric module and the system and the power generation method, since water flow flows through a barrier to form eddy behind the barrier, the disturbance of the eddy causes the swinging following pipe to swing left and right following the semi-flexible supporting member at the lower part, and relative motion occurs between a fixed member and a moving following member of the power generation assembly inside to carry out power generation. The water flow direction fixing pipelinehydroelectric module and the system and the power generation method has the advantages that the whole system does not need lubrication and maintenance, moving members do not exist, the service life islong, maintenance is not needed, and the sealing problem of a rotating element does not exist.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Self-balancing inertial damper adopting right-hand and left-hand thread lead screw

PendingCN109853765AEasy to installNo mechanical friction and wearProtective buildings/sheltersShock proofingPull forceMagnet
The invention belongs to the technical field of energy dissipation and shock absorption of engineering structures, and provides a self-balancing inertial damper adopting a right-hand and left-hand thread lead screw. The self-balancing inertial damper comprises the right-hand and left-hand thread lead screw, a magnet disc, a conductor disc, permanent magnets, double-headed flange cylinders, feed screw nuts and the like; a right-hand threaded section and a left-hand threaded section are arranged on the left side and the right side of the right-hand and left-hand thread lead screw correspondingly, provided with the feed screw nuts in a sleeved mode correspondingly and connected with bearings of a fixed support; the magnet disc and the conductor disc are arranged in pairs, the magnet disc is provided with the permanent magnets, and the magnet disc and the permanent magnets are fixedly connected with the feed screw nuts through the double-headed flange cylinders and do not make contact withthe right-hand and left-hand thread lead screw; and through reciprocating of the right-hand and left-hand thread lead screw on the axis, the magnet disc and the conductor disc always relatively rotate to generate an electric vortex effect, and shock absorption control of the structure can be achieved. By adopting right-hand and left-hand thread lead screw transmission, the purposes of inertial synergy and damping synergy can be achieved, meanwhile, the self-balancing performance of the lead screw is achieved, the mounting requirements for the two both ends of the damper can be relaxed, and the self-balancing inertial damper can also be applied to a pure tension system, and has good engineering value.
Owner:TONGJI UNIV

Passive magnetic spring

The invention discloses a passive magnetic spring comprising a stator and a rotor. The stator comprises a shell and a stator shaft end located at the end of the shell and slide relative to the rotor. A stator permanent magnet is arranged in the stator. The magnetic pole direction of the stator permanent magnet is parallel to the axial direction of the stator. The rotor is provided with at least two rotor permanent magnets. The rotor permanent magnets are arranged in the axial direction of the rotor. At least one rotor permanent magnet and the stator permanent magnet are arranged in a like polarity way. The passive magnetic spring provided by the invention is compact in structure, and manufacturing difficulty and cost can be lowered effectively.
Owner:宁波亿文特自动化科技有限公司

Integral type drive controller for vehicle air compressor

The invention discloses an integral type drive controller for a vehicle air compressor, which mainly solves the problems of difficult heat radiation, great requirement for assembly space, long harness and the like of the drive controller of the traditional air compressor. The integral type drive controller comprises a control circuit, a power device of the control circuit and a heat radiating part, wherein the outer side of the heat radiating part is attached to the outer side of a low-pressure area shell of the air compressor; the power device is attached to the inner side of the heat radiating part so that the heat radiating part radiates the heat of the power device by using low temperature of the low-pressure area of the air compressor. Alternatively, the outer side of the heat radiating part is attached to the outer side of the low-pressure area shell of the air compressor, and the heat radiating part is provided with a through hole leading to the outer side of the low-pressure area shell; and the power device penetrates through the through hole of the heat radiating part and is attached to the outer side of the low-pressure area shell, and the heat of the power device is radiated by using low temperature of the low-pressure area of the air compressor. Heat radiation of the drive controller is increased, and the assembly space is reduced.
Owner:林俐 +2

Pressure bearing device suitable for pressurized coring tool

The invention discloses a pressure bearing device suitable for a pressurized coring tool, which includes a pressure bearing assembly and a pin component, wherein the pressure bearing assembly includes a pressure bearing piston and a pressure bearing sleeve arranged on the pressure bearing piston in a sleeving manner; the pin component includes a shear pin; the upper end of the pressure bearing piston is limited on a pressurized connector in a hexagonal sleeve through a pressure bearing steel ball, and the lower end of the pressure bearing piston is a connecting end connected with a rotary assembly; the pressure bearing sleeve is fixedly connected with the pressure bearing piston through the shear pin; the lower end of the pressure bearing sleeve is limited on a short joint of an outer cylinder; and sand discharge holes and flow channels communicated with an inner chamber of the pressure bearing piston are arranged at the upper end of the pressure bearing piston. The pressure bearing device solves the problem that the conventional pressurized coring tool damages the performance of the outer cylinder as a pin penetrates through the outer cylinder, and achieves the purpose that the structure and performance of the outer cylinder are not damaged.
Owner:CCDC PETROLEUM CORING TECH

Modular self-balancing type inerter damper

The invention relates to a modular self-balancing inerter damper. Transmission gears, transfer discs and screw rod nuts are sequentially and symmetrically arranged on the two sides of a right-hand threaded and left-hand threaded screw rod from the middle to the end parts correspondingly, the transmission gears are rotationally installed on the screw rod nuts connected with the right-hand threadedand left-hand threaded screw rod through the transfer discs and rotate along with the screw rod nuts, two support bearings are arranged at the two ends of the right-hand threaded and left-hand threaded screw rod in a sleeving mode respectively and connected with the screw rod nuts to serve as fixed supports of the damper; and a bearing plate support is located on the middle position of the right-hand threaded and left-hand threaded screw rod, and an upper main gear and a lower main gear are respectively arranged on a central bearing at the upper part of a bearing plate and under a central bearing at the lower part of the bearing plate, and are respectively connected with the central bearing and the bearing plate through bolts. According to the modular self-balancing inerter damper, a maingear rotates around the axis in the opposite rotation direction through the right-hand threaded and left-hand threaded screw rod, the electromagnetic force and the counter-acting force of the electromagnetic force act on the screw rod in the equivalent opposite direction, the torques in the rotation direction around the axis are mutually offset, and the self-balancing performance of the screw rodis achieved.
Owner:TONGJI UNIV

Flue gas sulfur trioxide sampling equipment and method

The invention relates to a boiler flue gas component detection technology, in particular to flue gas sulfur trioxide sampling equipment and method. The equipment comprises a heating smoke gun arrangedin a flue, and a micro-channel gas-liquid reactor, a gas-liquid separator and a drying bottle which are sequentially connected and arranged in a low-temperature box; the micro-channel gas-liquid reactor comprises a spiral reaction part, wherein the input end of the spiral reaction part is provided with a gas inlet and a liquid inlet in parallel, and the output end is provided with a mixed outlet;the input end of the heating smoke gun is inserted into the flue, and the output end is connected with the gas inlet of the micro-channel gas-liquid contact reactor after entering the low-temperaturebox; a mixed outlet of the micro-channel gas-liquid reactor is connected with an inlet of the gas-liquid separator; a liquid outlet of the gas-liquid separator is connected with a liquid inlet of themicro-channel gas-liquid contact reactor through a liquid circulating pump, and a gas outlet of the gas-liquid separator is connected with an inlet of the drying bottle; a flowmeter and a sucking pump are sequentially arranged at an outlet of the drying bottle. The method is high in absorption efficiency, high in detection accuracy and capable of effectively improving the SO3 collection precision.
Owner:XIAN THERMAL POWER RES INST CO LTD

Fastening device for damping net at stilling chamber of wind tunnel

InactiveCN104359645AAdjust the tensionUniform axial velocity distributionAerodynamic testingEngineeringWire rope
The invention provides a fastening device for a damping net at a stilling chamber of a wind tunnel. The fastening device comprises a fixing rack, a tensioning mechanism and a clamping device. The fixing rack is directly welded to a cylinder of the stilling chamber of the wind tunnel. One end of the tensioning mechanism is mounted on the fixing rack; the other end of the tensioning mechanism is connected with the clamping device. The damping net is wound around a wire rope and locked; the wire rope with the damping net is fastened to the clamping device. The fastening device allows tension level of the damping net to be adjustable, axial speed of air after passing the damping net is evenly distributed, the fastening device is simple and reliable in structure and easy to demount and mount, perforating the cylinder is not required, and sealing problems are avoided.
Owner:BEIJING AEROSPACE YISEN WIND TUNNEL ENG TECH

Integrated high-finish traceless injection molding die core and thermal treatment process thereof

ActiveCN102179904AFully rapid heat exchangeNo sealing issuesNuclear engineeringThermal treatment
The invention belongs to the field of injection molding dies, and in particular relates to an integrated high-finish traceless injection molding die core. The integrated high-finish traceless injection molding die core is characterized in that: the upper surface of the die core is provided with a square sunken groove, two pentagonal following water passages are arranged in the die core and positioned at the bottom of the sunken structure, and protruding structural blocks on two sides of the die core and a die core body form a T-shaped structure. A thermal treatment process of the die core comprises the following steps of: pre-heating treatment, pre-sintering and homogenizing treatment, stress removal, oxide reduction, sintering treatment, tempering treatment and cooling treatment. Compared with the prior art, formation of the integrated traceless injection molding die core can be realized, the sealing problem is avoided, medium leakage caused by improper sealing is avoided, and the following water passages of the integrated die core are closer to the surface of a die cavity so that hot and cold media can exchange heat with the surface of the die cavity more fully and quickly.
Owner:上海德奎久保田模具有限公司

Immersion-type capillary space protein crystallization chamber

InactiveCN103254273AWith all-round shock absorption functionIncrease elasticityPeptide preparation methodsProtein solutionCapillary fill
The invention relates to an immersion-type capillary space protein crystallization chamber. The chamber has a full shock absorption function. The chamber comprises capillary protein solution pools and a porous precipitant solution pool, wherein the protein solution pools are glass capillary of organic or inorganic materials, and the two kinds of pools are communicated through gel plugs being with a volume of 3-5 [mu]m and prepared through gelation of hydrosol containing 0.5-2 % of agarose, thereby forming channels for diffusion and transferring of experimental substances. The capillaries filled with protein solutions and gel plugs are wrapped by foaming adsorption materials, and immersed in the precipitant solution, so that the capillaries are good in shock-absorption and sealing effects, and crystals in the capillaries can be prevented from being damaged by collision. The precipitant solution pool is sealed by a U-shaped metal cover, and the cover is hanged through a square hole on a side surface of the cover and a boss on a side surface of the pool.
Owner:INSITUTE OF BIOPHYSICS CHINESE ACADEMY OF SCIENCES

Impeller of rotor for shaftless transmission pump

The invention relates an impeller of a rotor for a shaftless transmission pump aiming to provide an impeller of a rotor for a pump without a transmission shaft and other related elements. The impeller of the rotor for the shaftless transmission pump comprises a permanent-magnet ring, a mouth ring, blades and a hub; wherein, a small section of protruding thin shaft formed at the two ends of the hub is fixed and hung on the related sliding bearings, a plurality of pairs of N-S magnetic poles are arranged on the external circular cylindrical surface of the permanent-magnet ring on the impeller of the rotor; when a stator of the shaftless transmission pump matching the N-S magnetic poles generates alternating magnetic field, the impeller of the rotor rotates to work; the power which drives the impeller of the rotor to do work comes from the torque power of the permanent-magnet ring thereof so that the impeller of the rotor is not needed to be driven by the pump shaft and has no sealing problem of a rotating shaft, thus optimizing the structure and property of the pump and being particularly applicable to the high-efficiency low-energy consumption zero leakage shaftless transmission pump.
Owner:广州水泵厂有限公司

Planet differential type automatic moment varying electric control device

The invention relates to a planet differential type automatic moment varying electric control device. The planet differential type automatic moment varying electric control device solves the problemsthat an existing automobile part automatic frock clamp is complex in structure, and inconvenient to maintain or replace later. The planet differential type automatic moment varying electric control device comprises a fixing bottom seat, a micro motor, a planet wheel assembly, a thread differential motion assembly and a pressure sensor, wherein the planet wheel assembly comprises a sun wheel, an axle type planet carrier and planet wheels, the thread differential motion assembly comprises a top cover, a differential thread sleeve and a differential thread inner gear ring, the sun wheel is connected with an output shaft of the micro motor, the planet wheels are arranged in the peripheral direction of the sun wheel, and respectively engaged with the sun wheel and the differential thread innergear ring, inner teeth of the differential thread inner gear ring are engaged with the planet wheels, an external thread at the top end of the differential thread inner gear ring is engaged with the top cover arranged on the periphery of the differential thread inner gear ring and the axle type planet carrier, an external thread at the bottom end of the differential thread inner gear ring is engaged with the differential thread sleeve, the axle type planet carrier is connected with the top cover through a thread, the top end of the axle type planet carrier stretches out of the top cover, and the pressure sensor is arranged at the bottom end of the differential thread sleeve.
Owner:BAOJI FAST GEAR

Elastic tensioning device for growth of diamond film electrode

The invention relates to an elastic tensioning apparatus for growth of a diamond film electrode, the device comprises a base plate (5) and a substrate work bench (21), and is characterized in that two ends of a heated filament (20) are fixed in a corresponding left molybdenum electrode (2) and a corresponding right molybdenum electrode (3), the left molybdenum electrode (2) and the right molybdenum electrode (3) are respectively arranged on the top of a corresponding left elastic support (1) and a right elastic support (4), the lower part of the left elastic support (1) and the right elastic support (4) are symmetrically arranged on the base plates(5) at two sides of the substrate work bench (21); the elastic coefficient of the left elastic support (1) and the right elastic support (4) isk=(1 to 3) n*r<2>, wherein r=0.1 to 1mm; the distance L(mm) between two ends forming by retracting inward of the left elastic support (1) and the right elastic support (4) satisfies a following relation with a work length L1(mm) of heated filament: L1=5+1.05L. The electrode of the present invention has simple structure and low production cost, heated filament is capable of maintaining a parallel straight state during growth process of diamond without generating tensile failure of heated filament, the uniformity of the substrate temperature field can be improved and the uniformity of depositional CVD diamond membrane can be raised.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Device for heating and refrigerating flowing liquid

The invention relates to a device for heating and refrigerating flowing liquid, and belongs to the field of temperature control systems. The device adopts a double-layer loop-shaped passage to heat or refrigerate the flowing liquid; the device is provided with a front heating plate, a rear heating plate and a middle heating plate which have the same shape and dimension; the middle heating plate is a rectangular plate; one side of the rectangular plate is processed with a front loop-shaped groove of the middle heating plate with a semicircular cross section; and the other side of the rectangular plate is processed with a rear loop-shaped groove of the middle heating plate with a semicircular cross section. The contact faces of the front heating plate and the rear heating plate towards the middle heating plate are processed with a loop-shaped groove of the front heating plate with a semicircular cross section and a loop-shaped groove of the rear heating plate with a semicircular cross section respectively; and metal hoses are positioned in the loop-shaped grooves to form the double-layer loop passage. The lateral surface of the heating plate is stuck with four semiconductor refrigerating sheets; and by heating of the heating plate, the temperature of the flowing liquid is indirectly controlled. The device has a simple structure, has no problem of liquid sealing, is convenient tomaintain and realizes even and rapid heating and refrigeration of the flowing liquid.
Owner:DALIAN UNIV OF TECH

A prestressed self-balancing inertial capacity damper with unilateral tension

The invention relates to a unilaterally tensioned prestressed self-balancing inertial capacity damper, which is used to connect with a vibration structure through a cable, including an outer cylinder, springs coaxially arranged in the outer cylinder, and positive and negative screw rods , a magnet disk, a conductor disk, and a first connection assembly and a second connection assembly that are fixedly connected to the inner wall of the outer cylinder, one end of the spring is fixedly connected to the outer cylinder, and the other end is connected to one end of the positive and negative thread rod, so The other end of the positive and negative thread rod is used to connect with the vibration structure through the cable, the two ends of the positive and negative thread rod are respectively provided with threads in opposite directions, and the magnet disk is sheathed through the first connecting component On the thread at one end of the positive and negative screw rod, the conductor disk is sleeved on the thread at the other end of the positive and negative screw rod through the second connecting component. Compared with the prior art, the present invention has the advantages of convenient installation, self-balancing , Can be reset and so on.
Owner:TONGJI UNIV
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