1、Thosecopper articles were superficially brassed.(那些铜制器具表面镀了一层黄铜。)
2、It looks like most of you got that the electron configuration that we're writing here is forcopper.(看起来你们大多数人都知道我们这里写的是铜的电子排布。)
3、copper, brass, and aluminium are separated and remelted for reuse.(铜、黄铜和铝被分门别类重新熔化以供再利用。)
4、copper conducts electricity well.(铜的导电性能好。)
5、Brass is an alloy ofcopper and zinc.(黄铜是铜锌合金。)
6、If you wanted red you addedcopper, if you wanted green you added iron.(如果你想要红色，你要加铜，如果你想要绿色，你要加铁。)
7、Industrial waste is even more harmful since there are many highly poisonous materials in it, such ascopper and lead.(工业废料更有害，因为其中有许多毒性很强的材料，如铜和铅。)
8、El Salvador produces 100,000 tons of refinedcopper annually.(萨尔瓦多一年生产10万吨精炼铜。)
9、Thecopper antennae have been looted, and only a giant satellite dish betrays its past.(铜质的天线被抢劫一空，只有一个巨大的卫星接收器泄露了它的过去。)
10、Since the Han and Tang Dynasties, Chinesecopper coins and banknote began to be copied by various neighboring states.(自汉唐以来，中国的铜钱和纸币开始被周边各国复制。) 【hao86.com好工具】
11、A group of men are erecting a monstrouscopper edifice.(一群人正在建造一座巨大的铜色建筑。)
12、Chile is the world's largest producer ofcopper.(智利是世界上最大的产铜国。)
13、This wire inside an electric lamp is not made ofcopper but it is made of tungsten.(电灯里面的电线不是铜丝而是钨丝。)
14、He wore acopper bracelet on his wrist.(他腕上戴着只铜手镯。)
15、If you were to go back and look, you could see that this iscopper.(如果你回头看，你会发现这是铜。)
16、The treasures are notcopper or coal.(这些宝藏不是铜矿或煤矿。)
17、copper pipe is sold in lengths.(铜管按长度出售。)
18、As new mines come on stream, Chile's share of worldcopper output will increase sharply.(随着新矿投产，智利在世界铜产量中所占的份额将大幅度增长。)
19、What is the chemical symbol forcopper?(铜的化学符号是什么？)
20、copper nails are better than iron nails because the iron rusts.(铜钉比铁钉好，因为铁钉会生锈。)
21、copper and zinc are fused to make brass.(铜与锌熔合后形成黄铜。)
22、Bronze is an alloy ofcopper and tin.(青铜是一种铜锡合金。)
23、Silver andcopper help to get off the dirt in the dark.(银和铜有助于清除黑暗中的污垢。)
24、His hair has reverted back to its originalcopper hue.(他的头发恢复到了原来的铜色。)
25、Among the mineral deposits of the province, tin occupies first place;copper comes second.(该省矿藏，以锡最多，铜次之。)
26、Among all commodities, nickel andcopper are under particular stress.(在所有大宗商品中，镍和铜尤其承压。)
27、Iron casts better thancopper.(铁比铜容易铸型。)
28、The materials from e-waste include iron,copper, gold, silver and aluminum.(电子垃圾中的材料包括铁、铜、金、银和铝。)
29、Miners in Zambia's northerncopper belt have gone on strike.(赞比亚北部铜矿区的矿工们举行了罢工。)
30、Thecopper pipework has corroded in places.(铜管有几处受到了腐蚀。)
