hydraulic prop मीनिंग इन हिंदी

उदाहरण वाक्य

1. Talking about single hydraulic prop caving coal mining
2. Finite element analysis on sealing cover of dwx hydraulic prop
3. A practical kind of dismantle pillar device used on aluminum alloy hydraulic prop
4. The research on single hydraulic prop equipped with detachable lengthened segment
5. Hydraulic prop test rig
6. Application of using single hydraulic props as temporary support in room - and - pillar coal face
7. Application on blast - winning technology with sublevel caving of hydraulic prop in inclined seam
8. Digging overall height floor coal at one times at about 3 . 0m seam face with single hydraulic prop
9. Discussion on the application of 3 . 5 m single hydraulic prop mining all height at one times in slope long wall mining
10. Abstract : this paper introduces the improving process of outside pour type hydraulic prop . it can reduce labour strength , raise pressure text safety and work efficiency