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| 汽车污染排放物 | |||
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| 机动车辆排放物 (进入环境的气态和颗粒污染物的排放主要来自汽车、卡车和公共汽车废气。) | |||
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| 机动车排放; 机动车辆排放物 | |||
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motor-vehicle emission : 4 phrases in 2 subjects |
| Automobiles | 2 |
| Technology | 2 |
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