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测地卫星; 大地测量卫星 (美国,又名 geodetic explorers) | |||
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测地卫星美; 大地测量卫星 (US) | |||
测地卫星; 大地测量卫星 | |||
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测地卫星美 |
geodetic satellites : 51 phrases in 12 subjects |
Air defense | 1 |
Aviation | 3 |
Cartography | 2 |
Earth sciences | 14 |
Electronics | 7 |
Geology | 1 |
Geophysics | 3 |
Oil / petroleum | 1 |
Remote sensing | 1 |
Space | 13 |
Technology | 4 |
United States | 1 |