送交者: whoami 于 2012-05-14, 14:18:13:

回答: I remember I had a long discussion with 007 about how to measure length 由 008 于 2012-05-14, 11:19:39:

• 也就是说只要距离测量足够精确就行 (无内容) - whoami (0 bytes) 2012-05-14, 14:21:44 (664841)

加跟贴