The water-inrush from floor inundates Working face 51101W in Liangzhuang coal mine, Xinwen Mining Group.
新汶矿业集团良庄煤矿51101W工作面因底板突水导致工作面被淹。
Either way, there's something very fundamental about having a normal working face that we need in our society.
不管是哪种原因,总之我们在社会上生存,拥有一张正常活动的面孔是非常重要的。
The lead rail was redesigned to make it more high strength, and the rail working face higher rigidity and higher abrasion performance according to the actual situations.
根据实际情况,重新设计了具有较高强度且工作面具有高硬度和耐磨性的导轨。
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