general situation of working face
...矿井概况(General situation of coal mine) 工作面概况(General situation of working face) 卸压煤层变形和渗流特征的数值分析(SIMULATION ON THE DEFORMATION AND SEEPAGE PROPERTIES OF PRESSURE-RELIEF COAL SEAM) ..
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general situation of working face
工作面概况
以上为机器翻译结果，长、整句建议使用 人工翻译 。