搜索 - 科创

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第一部分：APF部分220V交流电经过整流以后送到L4981AD 和两只TL4424和两只NMOS组成的APF功率因数控制电路，经过此部分以后输出390V的直流电。第二部分 X光机灯丝控制部分，此部...

确认收到听我说瞎话网友的捐款100元人民币，感谢支持！截止2012年9月16日，网站建设基金2012年共收到捐款20笔，明细如下： 1、2012-01-08 CNY200.00 ...

引用 1211:在乔布斯“吹毛求疵”之前，全世界人民都认为某些东西是“无关紧要的事情”。当苹果公司“过分的做文章”——例如把大家其实都看不见的内部做得像艺术品一样之后，它终于成为一家伟大的公司。然而，...

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