汽油机的

• Therefore , it is important to design an on - board instrument which make real - time measurement of the emission continuously in this thesis ， after studied the principle of gasoline engine and the mechanism of harmful elements in the emission , the author proposed the design of the on - board instrument
  本文在学习了汽油机的工作原理和排气有害成分的产生机理的基础上，提出了车载废气检测仪的设计方案。传统的废气分析仪的取样设备体积庞大，难以实现车载和在线检测。