理論上來說每種元素的中子數不同的同位素數量是N,N未知
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• 抬頭看新貼的 IAEA科普文 -Ospff- ♂ (0 bytes) () 08/27/2023 postreply 09:00:38
• 抬頭看新貼的 IAEA科普文 -Ospff- ♂ (0 bytes) () 08/27/2023 postreply 09:00:38
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