1.
Some cooks love the natural mellow patina that develops when copper is exposed to heat and air.
当铜锅暴露在热和空气中，有些烹饪可能会产生铜绿。
2.
Tentative Study on Production Process of Making Copper Rod from Scrap Copper in the SCR Copper Bar Production Line
SCR铜杆生产线用杂铜生产铜杆的工艺初探
3.
a copper salt made by the action of sulfuric acid on copper oxide.
一种铜盐，由硫酸作用于氧化铜而生成。
4.
Chinese bronze instrument of production
中国的青铜生产工具
5.
The first copper coins were made in China.
铜钱最早产生于中国。
6.
Wet acetylene will produce explosive acetylides on copper, 70-30 brass, and aluminum-bronze.
湿乙炔会在在铜、70-30黄铜和铝铜上生成爆炸性乙炔化物。
7.
A Study on Increase in Recovery of Copper and Associated Gold/Silver in Fengshan Copper Miner;
提高丰山铜矿铜及伴生金银回收率的研究
8.
Cu-Mo separation trial operation and improvement of Tongkuangyu concentrator
铜矿峪矿选矿厂铜钼分离生产调试及改进
9.
Production practice of reduce the copper content of refining slag in scrap copper reverberatory furnace
降低废杂铜反射炉精炼渣含铜的生产实践
10.
Production practice of using hydro-purification copper slag to prepare copper sulfate
利用湿法净化铜渣制取硫酸铜的生产实践
11.
Application of Copper Scrap Smelting Technology into Production of Copper Wire Stock
废杂铜冶炼技术在铜线坯生产中的应用
12.
Design of Shot-circuit Conductor for Copper Electrolysis Production and Optimization Instance
铜电解生产用短路铜导体的设计及改进实例
13.
Study on Heavy Metals in Ricinus Communis L. from Daye Tonglvshan Cooper Mine
湖北铜绿山古铜矿野生蓖麻重金属含量研究
14.
technology and production line of making copper wire rod
铜盘条生产技术与生产线
15.
Effects of Copper Mine Tailings on Growth and Physiological Functions of Brassica campestris
铜尾矿对油菜生长和生理功能的影响
16.
Cu alloy horizontal continuous casting is an advanced process for wire production of Cu alloy.
铜合金水平连铸是铜合金丝线材生产中的一种先进生产工艺。
17.
The company has the copper hydrometallurgy production line in addition, the scale of production for yearly produces 200 tons electrolytic coppers.
公司另具有铜的湿法冶金生产线，生产规模为年产200吨电积铜。
18.
Effects of Copper Sources and Copper Levels on Growth Performance, Fur Quality and Biochemical Parameters of Rex Rabbits;
铜源和铜水平对生长獭兔的生长性能、毛皮品质及理化指标的影响