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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。
- Study on Copper Pollution of Soil in Site Area of a Smeltery in Liaoning 辽宁某冶炼厂污染土壤的铜污染研究
- 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？
- We should use anthracite to avoid air pollution. 我们应该使用无烟煤以防止空气污染。
- Pollution control has cleared the air. 污染管制已净化了空气。
- 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。
- Man is fighting a battle against pollution. 人类正在与污染作斗争。
- Pollution is still very much a live issue. 污染现象仍然是当前的大问题。
- 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。
- The soil becomes more and more acidic as pollution mounts up. 随着污染的加剧，土壤的酸化越来越严重。
- 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。
- A clamor in the press for pollution control. 在报纸上对污染控制的呼吁
- We fuse copper and tin to make bronze. 我们把铜和锡熔制成青铜。
- Water pollution imperils all kinds of marine life. 水质污染危及所有海洋生物。
