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- Keywords Copper resource;Material input;Ecological rucksack;MIPS; 铜矿资源;物质投入;生态包袱;MIPS;
- They offer different maps e.g."Mexico Mineral Occurrence Map and Information Base", maps for silver and copper resources of Mexico and also Landsat scenes.Example images from the maps are shown. 该站点提供了许多地图，像墨西哥矿物资源分布地图与信息数据库，银矿和铜矿资源地图，还有土地景观地图等，该站点提供了这些地图的摹本。
- As a special industrial type of copper resources, native copper is formed under a weak alkalic and sulphur-deficient deoxidized environment.Three conditions are necessary during ore formation, i.e. 以湘西九曲湾（麻阳）铜矿和滇东北沿河铜矿为例，结合国外典型自然铜矿床（矿化带），分析了自然铜的成矿学特征及形成条件。
- 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。
- management system of copper resources information 铜矿资源信息管理系统
- 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。
- Immeasurable quantity of natural resource was lost forever through misuse. 无法估量的自然资源因被滥用而永远丧失了。
- A large cooking pot made of copper or often of iron. 金属锅用铜或铁铸成的大煮锅。
- Water is an essentially nonrenewable resource. 水是一种不能再生的资源。
