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| waste gas examination Qualitative and quantitative analysis of exhaust gases emitted from vehicles, industrial plants, etc. in order to asses their composition (对车辆和工厂等所排放的废气，为评估其组成而进行的定性和定量分析。) | |||
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| waste gas examination Qualitative and quantitative analysis of exhaust gases emitted from vehicles, industrial plants, etc. in order to asses their composition (对车辆和工厂等所排放的废气，为评估其组成而进行的定性和定量分析。) | |||