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- The copper in stick lac existed mainly in the corpses of the lac insect and that was the main pollution source causing copper pollution in laccaic acid (lac dye ) . 紫胶原胶中的铜高度富集于紫胶虫尸体之中,它是引起紫胶红色素铜污染的主要污染源。
- Acid, Cu, Cd are the main environmental pollution factors, the plant China Sumac has enrichment and translocation effects to copper, morbid in heavy copper polluted area, it is suit for the recovery. 野外调查、前人成果以及样品的化验分析表明酸、铜、镉等是德兴铜矿地区主要的环境污染因子,盐肤木对铜元素呈现一定的富集作用和很强的位移效应,是适合铜矿复垦的植被,在铜污染严重区出现病态。
- 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
- Discharge pipe take pollutant away from the coastal area into the sea. 排泄管道将污染性物质由沿海岸区排入大海。
- 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。
- Carbon dioxide may not be a typical air pollutant. 二氧化碳可能不是一种典型的污染物。
- Coal itself is a heavy pollutant. 煤本身就是一种严重的污染物。
- The city was overhung with the pollutant smog. 整个城市弥漫在污染的浓雾之中。
- A large cooking pot made of copper or often of iron. 金属锅用铜或铁铸成的大煮锅。