“shaft boring”的概念、定义、翻译、参考文献-科学参考

单词	shaft boring
释义	shaft boring 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	The U.S. Department of Agriculture’s National Invasive Species Information Center The Uses of Literacy: Aspects of Working-Class Life The US Long Term Ecological Research Network the US NationalInstitute of Science and Technology database The Uyghurs in Central Asia the vacuum (aerification) high temperature furnace used for testing machine The Vagabond The vagabond prince The Valiant Ones The Valley of Dreams The valley of the Shadow of Death the value-composition of capital the value determination of donated assets the value of editing the value of signal The value proposition The Vancouver Declaration on Human Settlements The Vancouver Sun The Varieties of Goodness the vehicle cargo Thevenin's theorem Thevenin theorem thevenin theorem Thevenin’s theorem The Vermilion Bird Avenue

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