I'm reading trace elements out of it, mostly engine exhaust.

我正在读从它出来的痕迹元素, 大部份引擎用尽.

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This paper discusses emission pollutants and theyproducedand presents measures taken to reduce diesel engine exhaust emission.

分析了柴油机尾气排放的成分及成因,指出了净化措施,介绍了机外尾气净化装置的总体结构和结构设计.

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Gas chromatography ( GC ) technology was used to analyze the acetaldehyde in engine exhaust gas.

介绍了利用气相色谱分析技术分析发动机尾气的方法.

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The power generation technology utilizing the temperature difference of engine exhaust gas is introduced.

介绍了利用发动机排气余热的温差发电技术.

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