英语词汇“motion sensor”的意思、释义、用法解释及翻译-春雷网

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词汇	motion sensor
释义	Definition of motion sensor in English: motion sensor noun A sensor that is sensitive to motion; a motion detector, especially as (part of) a security device that can trigger a burglar alarm, or as an aid to positioning or navigation. Origin 1960s; earliest use found in Science. Definition of motion sensor in US English: motion sensor noun A sensor that is sensitive to motion; a motion detector, especially as (part of) a security device that can trigger a burglar alarm, or as an aid to positioning or navigation. Origin 1960s; earliest use found in Science.
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