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| 空气源 | |||
| 气源 | |||
| air source: 32 phrases in 14 subjects |
| Aviation | 1 |
| Compressors | 1 |
| Desert science | 1 |
| Earth sciences | 1 |
| Ecology | 3 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Nautical | 2 |
| Oil / petroleum | 3 |
| Rail transport | 1 |
| Refrigeration | 2 |
| Space | 2 |
| Technology | 10 |
| Wind Energy | 3 |
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