- 双语例句
1、
The paper discusses a new method for producing cupric feed copper sulfate by chalcocite and ehalcopyite.
介绍了用辉、黄铜精矿制备饲料级硫酸铜的新方法.
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2、
The δ 34 S V - CDT of chalcocite from copper ore are 19.2 � � and 20.7� �.
辉铜矿δ34SCDT为19.2‰和20.7‰.
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3、
Leaching of copper from chalcocite with acidic acetonitrilecopper sulphate system was studied.
研究了用酸性乙腈硫酸铜体系从辉铜矿中提取铜.
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