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| enroute guidance system | |||
| 航线 导航 系统: 90 phrases in 13 subjects |
| Air defense | 6 |
| Architecture | 1 |
| Automobiles | 1 |
| Aviation | 10 |
| Earth sciences | 2 |
| Electronics | 6 |
| General | 5 |
| Nautical | 3 |
| Oil / petroleum | 1 |
| Shipbuilding | 19 |
| Space | 12 |
| Technology | 23 |
| Telecommunications | 1 |
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