The end, as of a mine or tunnel, at which work is advancing.
采掘面末端，如矿井的或坑道的，在此工作仍在继续。
Without no seams nor needle work, then he'll be a true love of mine.
没有缝口，也不用针线，那么他就会是我的心上人。
Water inrush has always been a serious problem in safety work of mine enterprise.
矿井突水一直是困扰矿山企业安全生产的突出问题。
Water inrush has always been a serious problem in safety work of mine enterprise.
矿井突水一直是困扰矿山企业安全生产的突出问题。
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