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32瓦一天能费0.768度电。32瓦=0.032kw,0.032kw/h一小时耗电为0.032度电左右,电功率为0.032kw,1度=1kw/h,即W=Pt,P=0.032kw;W=Pt=0.032kw×1h=0.032kw/h,所以32瓦...