porphyry copper是什么意思 porphyry copper怎么读
porphyry copper的用法和样例
- Dexing Copper Mine is an especially large porphyry copper mine in the world.
德兴铜矿是世界级特大型斑岩铜矿。 - The Gangdese porphyry copper belt is a new discovered ore belt in the South Tibet, China.
冈底斯斑岩铜矿带是在藏南新发现的铜矿带。
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