This wire inside an electric lamp is not made of copper but it is made of tungsten.

电灯里面的电线不是铜丝而是钨丝。

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Wind an insulated copper wire around a pen.

在一枝笔上缠绕一圈绝缘铜线。

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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。

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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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