The petrol composition influent emission of the engine markedly. It is especially important to control petrol composition particularly after three way conversion catalyst were installed in modern car.
汽油成分对排放有较为显著的影响，特别是在现代汽车普遍安装三元催化器后，控制汽油成分就显得尤其重要了。
The petrol composition influent emission of the engine markedly. It is especially important to control petrol composition particularly after three way conversion catalyst were installed in modern car.
汽油成分对排放有较为显著的影响，特别是在现代汽车普遍安装三元催化器后，控制汽油成分就显得尤其重要了。
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