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photoelectric controlの例文

例文モバイル版
  • Furthermore, before the invention of photoelectric controls, a single switch or clock could control all the lights in an entire district.
  • A variety of upgrades and innovations were applied to the light in the early twentieth century, including an experimental photoelectric control for the fog signal installed in 1936.
  • A variation of this technology is the'differential switching or dead-band'photoelectric control which has multiple illuminances it switches from so as not to disturb occupants as much.