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“矿山年产量”在这里是指仅有一个矿井(坑口)或包括几个矿井(坑口)的矿山“采出矿石”(包括混入的废石在内)年产量。因矿山一切设计都是以这个产量为依据的。
“Mines annual production ” here refers to the annual output of mines with only one mine (pit) or including several mines (pit) “mining ore” (including mixed waste rock). Because of all the design of the mine are based on this yield.