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air radiation |
气发 射 : 63 phrases in 14 subjects |
Air defense | 1 |
Automobiles | 4 |
Aviation | 13 |
Chemistry | 1 |
Earth sciences | 5 |
Electronics | 3 |
Geology | 1 |
Geophysics | 1 |
Nautical | 1 |
Nuclear physics | 1 |
Oil / petroleum | 1 |
Shipbuilding | 1 |
Space | 19 |
Technology | 11 |