搜索 - 科创

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一个台达变频到我手的时候功率管都被拆除了但是其他的东西都在开始还以为是拆原件卖的给拆了后来想想 IR2112应该比几个功率管还值钱咋还好好的呆电路板上？……莫非是已经修过没修好……！唉...

先来说下参数初级13匝次级680匝频率710KH 之前半桥用的50UD，电压开到200V报废了3个，50ud没的换了，半桥管子全换成IRF460,电压直接到250V，长...

自己组装电脑，装了2年。没怎么用。系统昨晚装的W7、能用。8成新。我现在拥有i7笔记本现，还拥有i7台式机，不需要那么多电脑。我不是电脑贩子。现在10元起拍卖，竞拍方式为：出价+联系方式。截至时间为：...

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