发布时间:2025-01-30 00:01:48
根据你实际流过电阻的电流 用P=i*i*r计算,实际运用是 ,最好余量留大点,设计功率一般是你实际功率的1.5--2倍
武汉十大水产批发市场 武汉水产市场在哪里 武汉大型水产批发市场有哪几个
2025-01-30 00:01:48 2025-01-30 00:01:48 2025-01-30 00:01:48 2025-01-30 00:01:48 2025-01-30 00:01:48 2025-01-30 00:01:48 2025-01-30 00:01:48 2025-01-30 00:01:48 2025-01-30 00:01:48 2025-01-30 00:01:48 2025-01-30 00:01:482021年中国口罩十大品牌排行榜稳健第9 第5日本高科技日化专家
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