positive ignition engine meaning in English

强制点火发动机

Limits and measurement methods for exhaust pollutants from positive ignition engines of vehicles and vehicles equipped with p . iengines
车用点燃式发动机及装用点燃式发动机汽车排气污染物排放限值及测量方法
Limits and measurement methods for exhaust pollutants from compression ignition and gas fuelled positive ignition engines of vehicles iii , iv , v
车用压燃式气体燃料点燃式发动机与汽车排气污染物排放限值及测量方法中国iii iv v阶段