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| Chinese | English |
| 交通废气排放 | traffic emission Exhaust gases and vapours emitted by motorvehicles (机动车排放的废气和水蒸气。) |
| 企业平均废气有害物排放量 | corporate average emission figure |
| 废气排放 | 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。) |