採掘煤柱 的英文怎麼說
中文拼音 [cǎijuéméizhù]-
Using the basic theories of hydrogeology, according to the analyses about the cause of the water bursting during the first drilling of 1211 ( 3 ) working - face in pansan mine being dug and the geological and hydrogeological condition on this working - face, the feasibility of reducing waterproof pillaring is analyzed and a project of overall arrangement and recovery on this working face is proposed
摘要運用水文地質學的有關原理，通過對潘三礦1221 （ 3 ）工作面第一個切眼掘進中突水原因和1211 （ 3 ）工作面地質、水文地質條件的分析，分析了1211 （ 3 ）工作面縮小防水煤柱開採的可行性，提出了工作面總體布局和回採方案。
分享友人