rock pressure around coal face
rock pressure around coal face
工作面围岩压力
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Finally, the coal-rock mass in the arch angle and apex is slided, and causes the distortion of local rock pressure, even induces dynamic hazards around working face.
拱角与拱顶煤岩滑落失稳，造成工作面局部压力畸变并诱发动力学灾害。
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