Hydraulic support device and supporting method based on extending in roadway
A technology of hydraulic support and end hydraulic support, which is applied in the direction of mine roof support, earth square drilling, mining equipment, etc., to achieve the effect of improving reliability
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[0074] According to the review guidelines, terms such as "having", "comprising" and "including" used in the present invention should be understood as not deriving the presence or addition of one or more other elements or combinations thereof.
[0075] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not b...
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