When the engine is cold, for example, then the mixture must be rich ( have a high proportion of fuel).
例如，当发动机冷车时，就必须提供较浓的混合气（具有较高的燃油比例）。
The mixture must be of varying degrees of richness to suit engine operating conditions. It must be rich (have a higher percentage of fuel) for starting, acceleration, and high-speed operation.
混合气的浓度比例可以改变，以适应发动机的运行状况。汽车在启动、加速和高速行驶时，需要含燃油浓度较高的混合气；
In a two-stroke gasoline engine, exhaust gas pollution is especially severe when it burns rich mixture of blended fuel.
二冲程汽油机排气污染严重，尤其是燃烧混合油、浓混合气时有害物排放量大。
With your combustion chamber filled by cooler, oxygen-rich air, fuel burns at a more efficient mixture.
与你的燃烧室填补了冷却器、富氧空气、燃油燃烧在一个更有效率的混合物。
High pressure will cause an over rich mixture, excessive fuel consumption, and such troubles as fouled spark plugs, rings, and valves (from excessive carbon deposits).
气过浓，燃油消耗过量，以及造成火花塞、活塞环、气门的堵塞(因积碳过量)。
For maximum engine power, a rich fuel mixture is mandatory in order for the combustion process to consume all the oxygen in the air entering the combustion chamber.
在发动机最大功率的工况下，燃烧过程中浓的可燃混合气会将燃烧室中的所有空气消耗完。
For maximum engine power, a rich fuel mixture is mandatory in order for the combustion process to consume all the oxygen in the air entering the combustion chamber.
在发动机最大功率的工况下，燃烧过程中浓的可燃混合气会将燃烧室中的所有空气消耗完。
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