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| 导航与测距 | |||
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navigation and ranging : 48 phrases in 14 subjects |
| Automobiles | 4 |
| Aviation | 5 |
| Earth sciences | 6 |
| Electronics | 7 |
| General | 2 |
| Mechanic engineering | 1 |
| Nautical | 1 |
| Navigation | 2 |
| Oil / petroleum | 1 |
| Scientific | 3 |
| Space | 6 |
| Technology | 5 |
| Telecommunications | 4 |
| United States | 1 |