本论文提出一种新的测试方法，并在此方法上研制出基于车载式的汽车尾气排放测试系统。

In this paper, a new type of measurement method is presented. Based on the method an on-board vehicle exhaust emission test system is developed.

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我们监测了油耗，进行了尾气排放测试，还有我刚才所说的废油分析，另外还有引擎检查。

We monitor the oil consumption, we run emission testing, as I mentioned, we do used oil analysis, and we do engine inspections.

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世界第二大汽车制造商——大众汽车已承认其曾于2015年在美国出售的无数柴油汽车上安装软件，以蒙混尾气排放测试。

Volkswagen, the world's second biggest car maker, admitted in 2015 that it had installed software in hundreds of thousands of diesel cars in the U. s. to cheat emissions tests.

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