该膨胀率还导致排气口附近区域形成富氧气氛。

This expansion ratio also allows atmospheres of oxygen-enriched air to form in the area surrounding a release.

youdao

该膨胀率还导致排气口附近区域形成富氧气氛。

This expansion ratio also allows atmospheres of oxygen-enriched air to form in the area surrounding a release.

youdao