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- Methods of correction for analysis of gold and silver in bessemer copper 粗铜中金银分析的补正方法
- The wrap lead cupelling method for the determination of gold and silver contents of bessemer copper 包铅灰吹法测定粗铜中金和银
- The chemical symbol for copper is "Cu". 铜的化学符号是Cu。
- What color is copper sulphate solution? 硫酸铜溶液是什么颜色？
- Copper and gold are both metals. 铜和金都是金属。
- Copper has less resistance than lead. 铜的电阻比铅的小。
- bessemer copper 转炉铜
- What color is copper sulfate solution? 硫酸铜溶液是什么颜色？
- A copper coin formerly used in India and Pakistan. 安那旧时在印度和巴基斯坦使用的铜币
- Ornamental copper pans hung on the wall. 墙上挂着装饰性的铜盘。
- This mountain road leads to the copper mine. 这条山路通向那个铜矿。
- Brass is an alloy of copper and zinc. 黄铜是铜和锌的合金。
- We fuse copper and tin to make bronze. 我们把铜和锡熔制成青铜。
- They will mine copper there in the valley. 他们将在那边的山谷开采铜矿。
- Brass is formed by the fusion of copper and zinc. 黄铜是由铜和锌熔合制成的。
- Copper conducts electricity better than iron does. 铜的导电性比铁强。
- A furnace in which pig iron is converted into steel by the Bessemer process. 炼钢熔炉一种通过酸性转炉法将生铁练成钢的设备
- A large cooking pot made of copper or often of iron. 金属锅用铜或铁铸成的大煮锅。
- The fusion of copper and zinc makes the metal brass. 铜和锌的熔化制成黄铜。
- The Bessemer Processuses a furnace called a "converter". 酸性转炉法使用称为“转炉”的高炉。
