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单词 arc light
释义

WordReference Random House Unabridged Dictionary of American English © 2024
arc′ light′, 
    1. Cinema, ElectricityAlso, arc′ lamp′. a lamp in which the light source is a high-intensity electric arc either between carbon rods in air or between metal electrodes in a xenon gas atmosphere enclosed in a quartz bulb.
    2. Cinema, Electricitythe light produced by such a lamp. Cf. carbon arc, xenon arc. 
    • 1875–80, American.

Collins Concise English Dictionary © HarperCollins Publishers::
arc light n
  1. a light source in which an arc between two electrodes, usually carbon, produces intense white illumination
    Also called: arc lamp
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