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交-直流仪器
将被测交流电量参数(如交流电流、交流电压、有功功率、无功功率、有功电能、无功电能、频率、相位、功率因数等)按比例转换成直流电流、电压,并隔离输出模拟信号或数字信号的仪器。
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worsted spinning
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worth of a game
Wortmann method
W. Osgood
W. Osgood (1864—1943)
Wo Shing Co., Ltd.
WO star
WOT
W. Oughtred
W. Oughtred (1575—1660)
Would Date Center system,
Woulfe bottle
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wounded and disabled insurance
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wound-rotor induction motor
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