dead man's switch

短语

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词形变化

dead man's switches 复数 dead man's switches

释义与例句

n.
  1. 1.

    A switch that ensures a fail-safe condition by automatically triggering an action (for instance, to stop a machine or vehicle) if a specified input from the operator is not made or is altered.

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    Holonyms: device, machine

    This seat is equipped with a dead man's switch. As the theory goes, "if the driver stops sitting, the machine is quitting."