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发帖数: 6973 | 1 WJ Hennigan, GPS is getting an $8-billion upgrade; Improvements, including
the replacement of satellites, aim to make the system more reliable, more
widespread and much more accurate. Los Angeles Times, May 23, 2010.
http://www.latimes.com/business/la-fi-gps-20100523,0,3054578.story
Note:
(1) El Segundo, California
http://en.wikipedia.org/wiki/El_Segundo,_California
(a city in Los Angeles County, California on the Santa Monica Bay;
incorporated in 1917; population 16,033 at the 2000 census; The |
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