搜索 - 科创

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现在的信息社会环境电磁辐射很厉害，各种辐射源简直是无孔不入，辐射量最大的一般就是手机基站了，无论是办公室还是家里，人体无时无刻不在被辐射，我想的是既然电磁辐射也是一种能量，那是不是能用一种金属膜贴在自...

zzlzhang浇注的燃料很多都受潮了，而且颜色很红，闻起来有山楂酸味，于是两支火箭被起名山楂一号和山楂二号。根据zzlzhang同学自己的描述，这两枚火箭没有名字。山楂二号使用金属发动机。某版主...

第一次发帖，请见谅我做了一个硝糖火箭，knsb配比为硝酸钾66，山梨糖醇34，硝酸钾不一定特别纯下边是几个图片，希望大家给我提供一些修改意见重心在中间黄色胶带偏下一点剑身用的牛皮纸和硬卷子封皮（具体材...

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