您要查找的是不是:
- Perco copper sweetening 培柯铜盐脱硫
- 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?
- 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
- I'll sweeten her up a bit by inviting her to the party. 我要邀请她参加聚会好让她随和一些。
- 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。
- Sorrows remembered sweeten present joy. 忧伤的回忆使眼前的喜悦甜美。
- Do you like to sweeten your coffee? 你的咖啡加糖吗?
- He can sweeten the ordinary things. 他能把极平常之事说得十分动听。
- Sours sweeten under certain conditions. 在一定的条件下酸的东西可以变甜。
- copper sweetening 铜脱硫法