17. 「變頻調速」之英文名稱為下列何者? (A)Speed Regulation by Variate Torque(B)Speed Regulation by Frequency Variatio
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17. 「變頻調速」之英文名稱為下列何者? (A)Speed Regulation by Variate Torque (B)Speed Regulation by Frequency Variation (C)Speed Regulation by Constant第1頁,共5頁Power (D)Speed Regulation by Pole Changing