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矿山钻井法
释义
矿山钻井法
Encyclopedia
工学
特殊凿井法
释
shaft boring
矿山钻井法
用钻井机钻凿竖井井筒的特殊凿井法。在地面采用大直径钻井机向地层钻进竖井,以洗井液护壁并排渣,悬浮下沉预制井壁作为永久支护,实现人员不下井的机械化凿井方法。
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stably almost complex manifold
stably equivalent vector bundle
stably free module
stably isomorphic modules
stably parallelizable manifold
stab resistance body armor
stab wound
stachyose
stachyose; lupeose
stachyurus or Japanese helwingia pith
stack
stack algorithm
stack allocation
stack alphabet
stack area
stack automaton
stack burning
stack casting
stacked base
stacked covering
stacked imaging
stacked traits of transgenic plant
stack effect
Stackel
Stackelberg equilibrium
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