因此在废气数据的测试中存在较大的误差。
Thus there must be a big discrepancy in the exhaust emission testing data.
列出了排气噪声和废气含量测试结果，并进行了分析。
It gave the experiment results and analyses of exhaust noise and exhaust contents.
介绍了废气污染物监测方法，根据实践经验总结了等速采样法在烟尘测试过程中的准确分析路径。
The monitoring methods of detecting waste gas pollution are introduced. The accurate analysis path of detecting dust by isokinetic sampling method is concluded based on the practical experiments.
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