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| ★ 对地观测系统 | |||
| 地球观察系统 | |||
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| 地球观测系统 (美国、西欧、日本联合的对地观测卫星) | |||
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| 地球观测系统 | |||
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Earth Observation System : 27 phrases in 12 subjects |
| Aviation | 3 |
| Cryosphere | 1 |
| Desert science | 1 |
| Earth sciences | 3 |
| Electronics | 3 |
| Environment | 1 |
| Geology | 2 |
| Remote sensing | 1 |
| Space | 6 |
| Technology | 3 |
| United Nations | 2 |
| United States | 1 |