copper line , copper busbar
Wind an insulated copper wire around a pen.
在一枝笔上缠绕一圈绝缘铜线。
youdao
Until recently the conversion was made using copper wire.
直到近期，这种转化都是利用铜线加以完成的。
Copper wire was used because of its great conductivity.
之所以使用铜是因为它导电性能良好。
Using copper wire Category 6 cables rather than optical cables lowers the costs enormously.
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This way he doesn't have to rely on thin, copper wire and slow performance.
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The tole is embossed, hammered and formed, and then attached to stems fashioned of copper wire.
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