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全球定位导航 系统 : 30 phrases in 13 subjects |
| Air defense | 2 |
| Automobiles | 1 |
| Aviation | 9 |
| Cartography | 1 |
| Communications | 2 |
| Earth sciences | 2 |
| Electronics | 2 |
| Information technology | 1 |
| Nautical | 2 |
| Navigation | 1 |
| Space | 3 |
| Technology | 2 |
| United States | 2 |
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