created sense approved 铜矿/銅礦 · tóngkuàng · copper mine
铜矿 / 銅礦
tóngkuàng
copper mine
a site or excavation from which copper is extracted
工程师们正在勘探一座新的大型铜矿。
noun
created sense approved 铜矿/銅礦 · tóngkuàng · copper ore
铜矿 / 銅礦
tóngkuàng
copper ore
rock or mineral from which copper can be profitably extracted
这些铜矿被运往冶炼厂进行加工处理。
noun