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单词 ground detector
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ground detector
ground detector n. any instrument which is used to detect an accidental connection to earth in a circuit.
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the world > matter > physics > electromagnetic radiation > electricity > transmission of electricity, conduction > conduction to earth > [noun] > instrument detecting connection
ground detector1904
1904 B. V. Swenson & B. Frankenfield Testing Electro-magn. Machinery I. 36 Figure Q shows a General Electric Ground Detector.
1958 Van Nostrand's Sci. Encycl. (ed. 3) 768/1 Lamp type ground detectors are used to a considerable extent on low-voltage circuits because they are reliable and cheap.
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