发布时间:2025-01-20 02:36:29
就是用电器在单位时间内的用电量的量如1KM/H就是一小时一千米的速度功率就是例如1W/S就是每秒耗电1W.
石膏粉那个牌子的好听说应城有很多我们这能看到的有玉环啊莲花牌什么的
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