Datuanshan XI #2 orebody at shizishan copper mine is a deep large size orebody,mined by the sub level open stoping method.是什么意思_Datuanshan XI #2 orebody at shizishan copper mine is a deep large size orebody,mined by the sub level open stoping method.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句