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air release |
排放空气 : 30 phrases in 13 subjects |
Automobiles | 2 |
Construction | 1 |
Earth sciences | 1 |
Electronics | 4 |
Environment | 1 |
Metallurgy | 1 |
Oil / petroleum | 1 |
Polymers | 1 |
Refrigeration | 2 |
Shipbuilding | 1 |
Technology | 13 |
United Nations | 1 |
Wind Energy | 1 |