copper是什么意思？

copper

英[ˈkɒpə(r)] 美[ˈkɑpə(r)]

• n. 铜，铜币，紫铜色，警察；
• adj. 铜制的；
• vt. 镀铜；

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

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?

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；