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矿山钻井法
释义
矿山钻井法
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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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internal model control
internal model principle
internal model principle method
internal mold
internal motion
internal motivation of learning
internal naris
internal network
internal nucleophilic substitution
internal overvoltage
internal oxidation
internal parameter
internal part-time of administrative and market subject
internal part-time of administrative subject
internal path length
internal photoelectric effect
internal photoelectric effect imaging device
internal photoemission
internal plasticization
internal point
internal policing supervisory
internal pollutant loading control
internal population migration
internal pressure
internal pressure resistance test of glass
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