搜索 - 科创

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视频转自YouTube，这是欧洲的低锡锻造硬化青铜剑，跟中国的青铜剑不同，含锡量一般在12%左右。而中国的直接铸造青铜剑含锡量一般在18%左右。不多说了，具体大家看视频吧。 http...

2.4G现在大量被使用，现在的模块价格已经很便宜了，定向天线，VCO，功分器，放大器等，而且都很便宜，测试也比较方便，是否可以考虑做一个2.4G的雷达，我觉得也不会很贵。只是这个频率有一点低，分辨率比...

DELL冗余电源已改造12v~15V精确调压。最大电流57.3A（更多信息参照上图）早期ZVS电路板需要揍附线，现在没焊锡了就需要你自己努力了。（拍肩）就这样的，有一个没有帽子，其他的都属于尘封状...

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