Water inrush from the bottom coal layer in mining work faced now is rather serious in Northern China coalfield, which constraints seriously the normal economical benefits.
在我国华北煤矿区，回采工作面煤层底板突水问题相当严重，困扰着煤矿经济效益的正常发挥。
And the Fuzzy-follower is applied in shaft bottom coal conveyor of a medium-sized coal mine and gives good results. Thus, it solves the problem of power balance of double-motor driving system.
该模糊跟随器在某中型煤矿的井下原煤运输系统中进行了实际应用，效果良好，较好地解决了双电机拖动系统的功率平衡问题。
He'd be at home in Buckingham Palace or at the bottom of a coal mine, he said.
“无论在白金汉宫，还是在煤矿坑底，他都很自在吧。”他说。
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