英德
有道
百度
谷歌
图片
维基
百科
立井
subvertical
- 分析了立井揭穿突出煤层的危险性，得到了在立井揭穿煤层过程中。
Gontrasting the stress distribution data simulated by FLAC with actually measured data from scene of coal gas, we have obtained the rule of stress distribution around working face. - 适用于开设立井提升、立井罐道港口装卸起重机、建筑用塔式起重机。
Suitable for vertical well drilling goisting, cage channel of vertical well drilling, port load and unload derrick ,and tower crane. - 煤矿立井井筒的信号传输，由于其传输环境特殊，一直没有很好地解决。
The problems of the signal transmission in a shaft have not been solved because the transmission environment is very bad.
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