请输入您要查询的字词:
单词
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。
随便看
Desarguesian configuration
Desarguesian geometry
Desarguesian lattice
Desarguesian plane
Desarguesian space
Desargues system
Desargues theorem
desaturase
desaturation
desaturator
descaling
descant
Descartes
Descartes crater
Descartes-Euler polyhedral formula
Descartes folium
Descartes formula
Descartes' method of doubt
Descartes oval
Descartes, René
Descartes rule of signs
Descartes snark
Descartes theorem
Descartes total angular defect
descendant
科学参考收录了854744条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2024/7/2 18:40:55