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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First, it is all made of copper.

第一，它是所有取得的铜。

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It is made by machining and welding, the basic supply being made of bent copper tubes.

水冷母线管主要由弯曲的铜管加工和焊接而成。

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It is bigger even than the Princess Lenore's room and it is made of hot copper, nobody can touch it.

VOA: special.2009.03.28

It is made mostly of copper. Throughout history,images of liberty have been represented as a woman.

VOA: special.2009.06.29

Among the technologies are new ways of making already-commercialized formulations, like amorphous silicon and cadmium telluride, and newer formulations like CIGS, named for the elements it is made out of, copper, indium, gallium and selenium, and CIS, which leaves out the gallium.

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