常見例句雙語例句Passes the hoisting jack to use the portal frame construction, reduces pushes slides the strength and increases moves a strength.推移千斤頂采用框架結(jié)構(gòu)，以減少推溜力和增大移架力。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產(chǎn)權(quán)的安裝大型電力設(shè)備的施工設(shè)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.當(dāng)立柱升起后頂梁貼緊頂板，提升千斤就能提起或放下綜采設(shè)備。ip.com 返回 hoisting jack