| |||
surface air observation; surface observation | |||
ground observation; ground-based observation |
地 面 观测 : 31 phrases in 11 subjects |
Aviation | 2 |
Desert science | 1 |
Earth sciences | 9 |
Electronics | 4 |
Environment | 1 |
General | 2 |
Geology | 1 |
Navigation | 1 |
Oil / petroleum | 1 |
Space | 2 |
Technology | 7 |