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File:Gps compass galileo frequency allocation Asimsky 05 2008.jpg
来自维基百科,自由的百科全书
Found in articles
File:Gps compass galileo frequency allocation Asimsky 05 2008.jpg
refer to en.wikipedia.
2008
-
05
-17 07:44
Asimsky
799×315× (32576 bytes) {{Information |Description= sketch of the
frequency
allocation
by satellite navigation