您要查找的是不是：
- 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。
- What color is copper sulfate solution? 硫酸铜溶液是什么颜色？
- copper asbestos gasket 铜包石棉垫片
- 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。
- Asbestos is a nonconducting material. 石棉是一种绝缘的材料。
- 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。
- Asbestos can be used to insulate a cooking stove . 石棉能被用来使一烹调用的炉灶绝热。
- A little asbestos fiber is formed on the contacts. 有少量石棉产于接触带。
- An asbestos with fine, silky fibers. 高级石棉，石绒一种很细的丝光石棉
- copper asbestos packing 铜包石棉衬垫
- copper asbestos ring 铜包石棉环
