搜索 - 科创

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你这个硫酸铜里面有杂质，影响了结晶。正常硫酸铜晶体无论结晶快慢，都不会出现针状。请购买新的纯净原料，并参考相关教程https://www.kechuang.org/t/84561

引用 z1458799323:有关加速度的讨论可以看这个帖子https://www.kechuang.org/t/82477双生子佯谬中的地球一方的加速度一直为零（无论是从哪一方看来），并不存在你说的...

话说最近不知道是南海有演习还是啥,短波波段格外的热闹,我甚至接收到了著名的暗号SSB电台 VC01 - China Robot , 据传是中国空军的信号,等下传上来

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