It has strong rigidity and high locating accuracy, simultaneously, it can compensate the axial size error accused by the centre hole size of the shaft.
该顶尖刚性强、定位精度高，能补偿由于被加工轴的中心孔误差所引起的轴向尺寸误差。
The locating of the deep ore body in Hongtoushan Copper Mine showed that the main shaft build in 1960s was in the predicted caving scope.
红透山铜矿深部矿体探明后，60年代建设的主井在其预计开采崩落范围内。
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