... differential action 微分酌 differential ammeter 差动安培计 differential amplifier 差动放大器 ...
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... 直流电流计 ammeter; dc 差动安培计 ammeter; differential 电动安培计 ammeter; electrodynamic ...
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... 直流电流计 ammeter; dc 差动安培计 ammeter; differential 电动安培计 ammeter; electrodynamic ...
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differential ammeter
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differential ammeter
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