The light of an electric lamp comes from an incandescent filament.

电灯光亮来自白炽灯丝。

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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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Thomas Edison failed thousands of times before he succeeded in inventing the first electric lamp.

托马斯·爱迪生在失败了数千次之后才成功地发明了第一盏电灯。

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Even the simplest electric appliance, the desk lamp, generally has at least a power switch or chain.

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