[电]
electrodynamic wattmeter
electrodynamic voltmeter 电动式伏特计 electrodynamic wattmeter 电动式瓦特计 electrodynamometer type impedance meter 电测力计式阻抗表 ..
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短语
铁磁电动式瓦特计
ferrodynamic wattmeter
电动式三相瓦特计
electrodynamic type three phase wattmeter
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