送交者: cornbug 于 2005-5-08, 12:33:40:

回答: 人类的最后一战？ 由 吴礼 于 2005-5-08, 11:37:19:

• btw, morden gyroscope uses laser to replace the moving part. - steven (116 bytes) 2005-5-08, 13:17:03
  • Thanks. I bought a toy gyroscope before and began - cornbug (370 bytes) 2005-5-08, 13:48:18

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