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10楼#
发布于：2005-01-07 02:16
<img src="http://www.gisempire.com/bbs/Skins/Default/emot/em01.gif">
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11楼#
发布于：2004-06-15 12:58
<P>再发一下：</P><P><a href="http://www.colorado.edu/geography/gcraft/notes/gps/gps_f.html" target="_blank" >http://www.colorado.edu/geography/gcraft/notes/gps/gps_f.html</A></P>
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12楼#
发布于：2004-05-25 13:18
<img src="images/post/smile/dvbbs/em02.gif" />
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13楼#
发布于：2004-05-25 12:13
GPS is a Satellite Navigation System
http://www.colorado.edu/geography/gcraft/notes/gps/gps_f.htm |
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