名词
中文翻译：照明主干
同义词：
['main conductor', 'main beam例句：1. The lightingmain is responsible for the brightness andcolor of the display screen.（照明主干负责显示屏的亮度和色彩。）']
例句：
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1. The lightingmain is responsible for the brightness andcolor of the display screen.
照明主干负责显示屏的亮度和色彩。
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2. The main beamof the lighthouse illuminates the harbor.
灯塔的主光束照亮了港口。
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3. The main beamof the searchlight was aimed directly atthe target.
探照灯的主光束直接瞄准目标。