This confused the whole underground movement .
这打乱了整个地下活动。
The application of personnel: managers, security prosecutors, ventilation management, mechanical and electrical maintenance personnel and the underground movement of workers.
适用人员:管理干部、安全检察人员、通风管理人员、机电维修人员及井下流动作业人员。
This paper is a tentative research on the fundamental law of the ground movement due to underground mining.
本文是用碎块体理论研究由于地下开采引起的岩层和地表移动的基本规律的初步尝试。
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