搜索 - 科创

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你看到的大概是自媒体的内容增加了，特别是视频内容增加了。前几天有新闻说新京报只留下了不到10个人办报，其他人全部搞视频去了，就很能说明问题。HAM相关的东西，本来就是听觉、视觉呈现的，和小视频结合起来...

找到两张Intel 4004的原理图其中<redrawn-4004-schematics-2006-11-12.pdf>是Intel公开的4004原理图，但存在较多的省略（比如RAM存储单元在这个里面...</redrawn-4004-schematics-2006-11-12.pdf>

241Am是59keV。本底谱形状就是这样，没有特殊意义。本底多数来自于铀/钍系衰变，在低能有很多峰。由于仪器分辨力有限，这些峰集合起来就成为这一形状。飞机在低空飞行时（数百到两三千米），可见本底明显...

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