copper
copper
英[ˈkɒpə(r)]美[ˈkɑːpər]
n.铜（币），警察；
adj.铜色的；
复数：coppers;
例句
At room temperature,the thermal conductivity of a diamond is about six times higher than that of a piece of copper.在室温下,钻石的热传导律比铜块高六倍左右。
a glass beaker containing copper sulphate solution盛有硫酸铜溶液的玻璃烧杯
Copper has less resistance to electricity than lead.铜比铅的电阻要小。
Copper wire is flexile.铜丝易弯曲。
Copper wire is flexible.铜丝易弯曲。
a crucifix of copper一个铜十字架
Copper conducts electricity well.铜是电的良导体。
Copper is a good conductor of heat.铜是热的良导体。
Iron casts better than copper.铁比铜好铸造些。
copper backing铜垫片, 铜衬底
英语六级真题
The materials from e-waste include iron, copper gold, silver, and aluminum—materials that could be reused, resold, salvaged, or recycled.
2019年6月六级真题（第二套）阅读 Section B柯林斯高阶英汉双解学习词典释义
N-UNCOUNT
铜
Copper is reddish brown metal that is used to make things such as coins and electrical wires.
例句
Chile is the world's largest producer of copper.智利是世界上最大的产铜国。...a copper mine.铜矿ADJ
铜色的;紫铜色的;红棕色的
Copper is sometimes used to describe things that are reddish-brown in colour.
例句
His hair has reverted back to its original copper hue.他的头发又变回原来的淡红棕色。N-COUNT
铜板;铜币
Coppers are brown metal coins of low value.
N-COUNT
警察
A copper is a policeman or a policewoman.
例句
...your friendly neighbourhood copper.你们友善的社区警察英汉词典释义
n.
铜
Copper conducts electricity well.铜是电的良导体。铜币
Have you any coppers in your change?你的零钱里有铜币吗?警察
英英词典释义
Noun
1. a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor
2. a copper penny
3. uncomplimentary terms for a policeman
4. a reddish brown the color of polished copper
5. any of various small butterflies of the family Lycaenidae having copper colored wings
Verb
1. coat with a layer of copper
行业词典
冶金学： 紫铜；
医学： 铜；一种微红色，富有延展性的金属，原子序数29，原子量63.54，符号为Cu，能形成有毒盐类。铜元素是营养的必需物质，多种蛋白质的组成部分，包括血浆铜蓝蛋白、红细胞铜蛋白、细胞色素C氧化酶、酪氨酸酶等。铜缺乏(较少见)可引起低色素小细胞性贫血、中性白细胞减少和骨改变；
