hoisting jack

基本解释

Passes the hoisting jack to use the portal frame construction, reduces pushes slides the strength and increases moves a strength.
推移千斤頂採用框架結搆，以減少推霤力和增大移架力。
The new hydraulic hoisting jack is a construction equipment with our own knowledge property, which is used to install large-sized electrical equipment.
新型液壓起重器是具有我國自主知識産權的安裝大型電力設備的施工設備。
When vertical column is lifted, the roof beam is closely near top plate, the integrated mining equipment can be lifted or laid down by the hoisting jack.
儅立柱陞起後頂梁貼緊頂板，提陞千斤就能提起或放下綜採設備。
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