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单词 Pointolite
释义

Pointolite

/ˈpɔɪntəlʌɪt/
noun
A type of arc lamp designed to give a small but bright source of light (especially for use in projection equipment), the illumination being provided by the incandescence of a small knob of tungsten.
  • A trademark in the United Kingdom..

Origin

Early 20th century; earliest use found in Illuminating Engineer. From point + o', variant of of + lite.

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更新时间:2024/9/21 18:37:51