单词：mercury-vapor lamp
mercury-vapor lamp的用法和样例：
例句
- These lenses are therefore suitable when using the mercury green band.所以，当采用水银灯的绿色光带时，此种透镜是适用的。
- Michael W.Nelson, a graduate student of Wagner's, is standing next to a sheet that hangs down from a clothesline in front of a brilliant mercury vapor lamp.华格纳的研究生纳尔逊正站在一大片床单旁，床单挂在晒衣绳上，前面则挂了盏超亮的水银灯。
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