搜索 - 科创

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首先说明，我不是托也不是宣扬产品，只是觉得创意不错，给大家分享下，取其精华。第一个：手电筒音箱：创意相当不错也方便制作，材料好找，结构简单，实用性也强，特别适合DIY爱好者。第二个：移动电源：这个东西...

个人觉得激光器原理不算很复杂，看着结构图总想起了霓虹灯之类的东西[s::L] 另外求激光大神推荐几部激光武器方面的理论书希望本帖主要用于理论知识交流，而不是乱喷的地方水经验的地方，我从来没有玩过百度...

燃烧室长度：225mm燃烧室直径：41mm燃料内孔直径：15mm喷管入口直径：41mm 收敛段长度：10mm 喷喉直径：12mm 喷喉长度：3mm 扩张段长度：35mm 喷管出口直径：25mm下面放几...

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