发布时间:2025-02-07 23:06:14
小功率的话可以直接采用对接或者耦合的方式来做了,这样都有一个条件就是汇聚的光纤要比另外几根光纤捆绑起来更粗,不然效率很低
380v动力电没零线 用380v电焊机转220v求零线用空调
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