送交者: whoami 于 2014-02-13, 11:21:07:

回答: 一解思是势能变动能，但为什麽是angular momentum 由 cornbug 于 2014-02-13, 10:50:58:

• that is just a conjecture. (无内容) - cornbug (0 bytes) 2014-02-13, 11:34:12 (741009)

加跟贴