煤矿企业安全生产

采掘工作面遇到下列情况之一时，必须确定探水线进行探水。( )

发布于 2021-03-23 18:24:25

【多选题】
A 接近可能积水的相邻煤矿
B 接近导水陷落柱
C 打开隔离煤柱放水
D 接近有水的灌浆区

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卡姿兰小眼睛 2023-03-23

你真的快乐吗？或许只是低着头不想说话……

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ArchKnight

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