搜索 - 科创

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要想给它短时间致盲，建议使用红外的，照你的方法扩束，不然很快就人物俱获。图中光束已经散开了，是模块自带透镜的效果么？你的模块体积怎么那么大？把手看着很眼熟，我想到了可怜的变压器。

一块足够大的石墨（比如铅笔芯）中应该存在各种方向的石墨晶体，例如一块球形石墨，你在任何一个方向上都可以再纸上留下痕迹，所以通过这个可以证明足够大的石墨中存在各种方向的石墨晶体

我没看视频根本不知道你的意想不到在哪里。。。但是我想说这里为什么要用铜线，表面积太小，然后为什么要在液面底下打孔，密封难做。实验嘛应该算成功，但是东西有点简陋设计上还要改进一下

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约找到 10000 条结果，耗时 0.277 秒

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