试验结果表明：LPG发动机成功起动所需的混合气浓度比汽油发动机的稀。
The results showed that the fuel-air mixture suitable for the LPG engine start is leaner than that of the gasoline engine.
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。
In a two-stroke gasoline engine, exhaust gas pollution is especially severe when it burns rich mixture of blended fuel.
汽油机燃烧稀混合气是降低有害尾气排放、燃油消耗率的有效途径。
Lean burn mixture combustion of gasoline engine is an effective approach for reducing emissions and fuel consumption.
火花塞安装于汽油发动机的燃烧室内，用于点燃气缸内被压缩的可燃混合气。
The spark plug is installed in the combustion chamber of the gasoline engine and used to ignite the compressed combustible mixture in the cylinder.
稀薄燃烧；两次喷油；准均质混合气；二气门汽油机；
Lean burn; Twice electronic fuel injection; Quasi-homogenous mixture; 2-valve SI engine;
结果表明，该直喷汽油机具有较强的滚流性能，有利于分层混合气的形成和稀薄燃烧。
The results show that a rather strong tumble motion exists in this GDI engine, which is beneficial to the formation of stratified mixture and lean combustion.
结果表明，该直喷汽油机具有较强的滚流性能，有利于分层混合气的形成和稀薄燃烧。
The results show that a rather strong tumble motion exists in this GDI engine, which is beneficial to the formation of stratified mixture and lean combustion.
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