combustible gas 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.
由於這個原因，要使發動機迅速啟動，必須通過化油器向每個汽缸提供濃的可燃混合氣。
