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计算题:YZR315M-10型电动机,额定功率Pn为75kW,额定转速nn为579r/min,Tmax/Tn=3.45,试求额定转矩Tn、最大转矩Tmax?
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填空题在功率S、P、Q中,电动机通常以()为额定功率。
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