| 词汇 | NOx |
| 释义 | NOx noun [ U ] environment specialized uk/nɒks/ us/nɑːks/ （作为空气污染物的）氮氧化物 the gases nitric oxide and nitrogen dioxide, that are produced when fuel is burned and that are harmful to the environment new engines which produce lower NOx emissions 氮氧化物排放量较低的新型发动机 |
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