两个氢原子有没有区别？世界上有两个完全一样的东西？

两个氢原子有没有区别？世界上有两个完全一样的东西？

李论科学

54 года назад

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知识就是力量，无用方为有用！
#科普 #探索 #動物與自然 #野生 #人類

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