mine run meaning in Chinese

未经选洗的
原矿

Battle of mine run
雷奔之役
A horizontal or nearly horizontal passageway in a mine running through or parallel to a vein
水平巷道穿过矿脉或与矿脉平行的矿井中水平或近似水平的巷道
Equally horrifying was the death toll of ill - treated laborers in factories and mines run by imperialists across china
列强在中国各地开办的工程和矿山中，肆意虐杀华工的记录骇人听闻。