您要查找的是不是：
- A large cooking pot made of copper or often of iron. 金属锅用铜或铁铸成的大煮锅。
- bioleaehing of copper ores 生物浸出提铜
- An ancient Roman coin of copper or copper alloy. 阿斯古罗马一种铜硬币或铜。
- A coin, usually of small denomination, made of copper or a copper alloy. 铜币用铜或铜的合金制成的硬币，通常为小面值
- An opaque or semitranslucent brown glass flecked with small metallic particles,often of copper or chromic oxide. 金星玻璃一种不透明或半透明的棕色玻璃，掺有小的金属颗粒，通常为铜或氧化铬
- An opaque or semitranslucent brown glass flecked with small metallic particles, often of copper or chromic oxide. 金星玻璃一种不透明或半透明的棕色玻璃，掺有小的金属颗粒，通常为铜或氧化铬
- Brass is an alloy of copper and zinc. 黄铜是铜和锌的合金。
- Brass is formed by the fusion of copper and zinc. 黄铜是由铜和锌熔合制成的。
- Corrosive Flux: A flux that contains corrosive chemicals such as halides, amines, inorganic or organic acids that can cause oxidation of copper or tin conductors. 腐蚀型助焊剂:含有诸如卤化物,铵,有机或无机酸的助焊剂,它能引起铜或锡导线氧化。
- And all can run on copper or fiber-optic cable. 所有这些均可在铜线或光缆上运行。
- Zambia is the world's largest exporter of copper. 赞比亚是世界上最大的铜输出国。
- The fusion of copper and zinc make the metal brass. 铜和锌的熔化制成黄铜。
- Thin wires easily melt if they are made of copper. 如果用铜制细导线极易熔化。
- Do you know which is heavier copper or silver? 你知道铜和银哪个重?
- An alloy of copper with10 percent tin. 炮铜一种掺有10%25的锡的铜合金
- Corymbosa best to use copper or hammering. 最好使用铜棒或铜锤进行锤击。
- Copper oxide is made up of copper and oxygen. 氧化铜是由铜和氧组成的。
- He was hammering the sheet of copper flat. 他正把铜片锤平。
- A vein of copper was seen criopping out. 可以看见一条铜矿矿脉露出地面。
- In ancient times the rulers ran copper or silver into coins. 古时候统治者把铜或银铸成钱币。
