| |||
| 区域导航 | |||
|
range navigation : 123 phrases in 15 subjects |
| Air defense | 7 |
| Aviation | 31 |
| Drilling | 2 |
| Earth sciences | 4 |
| Electronics | 12 |
| General | 8 |
| Geophysics | 4 |
| Nautical | 3 |
| Navigation | 2 |
| Oil / petroleum | 6 |
| Remote sensing | 1 |
| Shipbuilding | 7 |
| Space | 12 |
| Surveying | 1 |
| Technology | 23 |