Thanks. I am just trying to understand why it is not right/wrong

來源: Euro-dollar 於 2018-11-12 07:00:08 [] [舊帖] [給我悄悄話] 閱讀數 : (150 bytes)

I am not a physicist. But if Pa Jianwei is right, I should be able to understand why he is right, vice versa. 

Nice day.

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