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low earth orbit; low orbit | |||
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space based infrared system-low |
低轨道 : 74 phrases in 13 subjects |
Air defense | 2 |
Aviation | 7 |
Biotechnology | 1 |
Chemistry | 5 |
Earth sciences | 3 |
Electronics | 8 |
General | 3 |
Information technology | 2 |
Multimedia | 1 |
Rail transport | 2 |
Space | 29 |
Technology | 9 |
Telecommunications | 2 |