According the actual data of 12501 earth's surface observation station, the law and estimation of subside velocity of various points in active period are discussed emphatically during driving stope.
通过12501地表观测站实测资料，着重讨论工作面推进过程中活跃期主断面内各点的下沉速度规律和预计方法。
According the actual data of 12501 earth's surface observation station, the law and estimation of subside velocity of various points in active period are discussed emphatically during driving stope.
通过12501地表观测站实测资料，着重讨论工作面推进过程中活跃期主断面内各点的下沉速度规律和预计方法。
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