combustible mixture的用法和樣例：
例句
- The idle system supplies a very rich mixture to start with.
怠速系統提供很濃的可燃混合氣供起動(dòng)使用。 - For this reason, it is necessary to provide extremely rich mixture from the carburetor in order to provide sufficient combustible mixture to all cylinders for quick starting.
由于這個(gè)原因，要使發(fā)動(dòng)機迅速啟動(dòng)，必須通過(guò)化油器向每個(gè)汽缸提供濃的可燃混合氣。
