发布时间:2025-01-30 00:06:35
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 00:06:35 2025-01-30 00:06:35 2025-01-30 00:06:35 2025-01-30 00:06:35 2025-01-30 00:06:35 2025-01-30 00:06:35 2025-01-30 00:06:35 2025-01-30 00:06:35 2025-01-30 00:06:35 2025-01-30 00:06:35 2025-01-30 00:06:35楚江荆 mfz47abc4 手提式干粉灭火器 4公斤购买最佳价格
2025-01-30 00:06:35 2025-01-30 00:06:35 2025-01-30 00:06:35 2025-01-30 00:06:35 2025-01-30 00:06:35 2025-01-30 00:06:35 2025-01-30 00:06:35 2025-01-30 00:06:35 2025-01-30 00:06:35