送交者: xinku 于 2007-03-03, 10:31:44:

回答: what is wrong with that? 由 steven 于 2007-03-03, 08:52:48:

• of course satellites have to overcome drag, which mostly come - steven (215 bytes) 2007-03-03, 15:14:58 (128244)
  • A simple question, - 唐好色 (270 bytes) 2007-03-04, 22:22:22 (128345)
    • The exosphere is the outmost atmosphere, which is from - steven (213 bytes) 2007-03-05, 01:14:21 (128365)

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