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| 地理坐标参考〔系〕 (system) | |||
| 地面参照物; 地标 | |||
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| 地理基准 | |||
| 地面参照物; 地标 | |||
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| 世界地理代号制美国空军的 | |||
| geographical reference: 32 phrases in 10 subjects |
| Air defense | 1 |
| Aviation | 7 |
| Business | 2 |
| Desert science | 3 |
| Earth sciences | 1 |
| Electronics | 1 |
| General | 1 |
| Geology | 7 |
| Space | 5 |
| Technology | 4 |
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