spent ore的意思|示意
美 / spent ɔ: /
英 / spɛnt ɔr /
废矿
spent ore相关例句
The method of utilization of industrial spent acid and rejected copper and Zinc oxide ore is concerned in this paper.
本文涉及工业废酸资源化和废弃的氧化铜锌矿资源综合利用的方法。