火花塞点燃压缩的空气燃油混合气，燃烧使混合气迅速膨胀。

The spark plug fires, igniting the compressed air-fuel mixture which produces a powerful expansion of the vapor.

youdao

火花塞点燃压缩的空气燃油混合气，燃烧使混合气迅速膨胀。

The spark plug fires, igniting the compressed air-fuel mixture which produces a powerful expansion of the vapor.

youdao