Gasoline car engines use spark ignition whereas diesel engines use compression ignition.
汽油机使用火花点火，而柴油机使用压缩点火。
2
The two major engine types in use are spark ignition (gasoline engine) and compression ignition (diesel engine) which use different types of fuel.
常用的两大类内燃机是火花点火式(汽油机)和压缩点火式(柴油机)内燃机，他们使用不同种类的燃料。
3
Some key parameters such as gasoline vapor mole quality and compression factor, vapor pressure, and vapor-air diffusion coefficient were decided and recommended.