Dexing Copper Mine copper factory mining area in Jiangxi province is the largest scale open pit in China non-ferrous metal Industry.是什么意思_Dexing Copper Mine copper factory mining area in Jiangxi province is the largest scale open pit in China non-ferrous metal Industry.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句