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一台国产XQB30-13型全自动洗衣机说明书中所列的主要技术数据如下表。试根据表中提供的数据计算: (1)这台洗衣机在额定电压下洗衣或脱水时,通过洗衣机的电流是多大? (2)如洗衣、脱水的累计时间为40min,则洗衣机耗电多少度? (3)若电机直流电阻为20欧,工作效率是多少? 额定电压频率额定洗衣、脱水功率额定洗衣、脱水容量整机质量外形尺寸(长×宽×高) 220V50HZ440W3kg33kg542mm×550mm×920mm
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