名词
中文翻译：水银弧光灯
同义词：
['mercury lamp', 'mercury arclight']
例句：
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1. The mercury arc lamp was the onlysource of illumination in the darkroom.
在黑暗的房间中，汞弧灯是唯一的光源。
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2.The mercury arclamp was used to create a warmand inviting atmosphere.
汞弧灯被用来创造一个温暖而吸引人的氛围。
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3. The mercury arc lamp was replaced by moreenergy-efficient alternatives.
汞弧灯被更高效的替代品所取代。