发动机点火系统是汽车电系中电磁干扰的重要来源。
Engine spark ignition system is the main source of electromagnetic interference on vehicle.
本文叙述了对JDIA型与传统型点火装置进行电性能，发动机性能、汽车道路行驶及发动机排气对比测试与结果分析。
This article describes tests on electrical performance of ignitor, engine performance, road driving and the components of exhaust with the new JDIA and the traditional ignitors.
汽车发动机由高电压电火花点火，点火过程产生的电磁波辐射对车载无线电接收机及周围电磁环境都会造成电磁干扰。
Electromagnetic radiation, which is created during the ignition, will cause electromagnetic interference on the automotive radio receiver and the surrounding electromagnetic environment.
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