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| vehicle emission | |||
| waste gas emission The direct or indirect discharge of exhaust gas into the atmosphere (将废气直接或间接地排放到大气中。) | |||
| exhaust gas emission; exhaust emission | |||
| dirty discharge | |||
| waste gas emission | |||
| effluent emission | |||
| 废气排放: 28 phrases in 10 subjects |
| Automobiles | 4 |
| Aviation | 1 |
| Ecology | 3 |
| Environment | 2 |
| General | 1 |
| Metallurgy | 2 |
| Space | 1 |
| Steel production | 1 |
| Technology | 12 |
| Wind Energy | 1 |