作者NCUEKLKL (鳥實驗室~硍)
看板Chemistry
標題請問一題化學
時間Sun Feb 12 22:58:23 2006
Positron production reslts in
1 higher proton/neutron ratio
2 smaller proton/neutron ratio
3 same proton/neutron ratio
4 smaller neutron/proton ratio
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1F：→ yiso:變小 舉個例子應該就會知道吧 02/12 23:12