Be aimed at the characteristic of the fault influencing to exhaust, building the fault diagnosis expert system through idea and method of the analyzing exhaust gas emission component is researched.

并针对影响汽车排放的故障的特点，通过废气排放成分分析的诊断思路及方法，对构建尾气分析专家系统进行了研究。

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The exhaust temperature is too high, because the air valve in the component such as often, high accident rate, not damage suitable for a long time.

该机由于排气温度过高，导致气阀等零部件经常损坏，事故率高，不适合长时间运行。

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The main component of the system, the exhaust fan, can not be polluted by the soot, needs no cleaning, and has the advantages of simple maintenance, long service life and good soot separating effect.

系统中主要部件排风机将不会受到油污的污染，且不需清洗，具有维护简单，使用寿命长和油烟分离效果高的优点。

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One of the pollutants was a fine particulate substance known as PM2.5, a major component of diesel exhaust which EPA had determined to be unsafe for inhalation at any level, particularly for health-impaired and elderly populations.

FORBES: EPA Charged With Lethal Experiments On Hundreds Of Unsuspecting Subjects