rotary switch

名词 n.
中文释义

英文释义

名词 n.
  1. A switch that is operated by turning a knob.
    — A close-up of the very compact desk unit for control of the East Finchley programme machine from Leicester Square; the rotary switches at the top are used to set up the train number of any service to be added or cancelled.

词形变化

rotary switches plural
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