污染源贡献率 Pollution contribution rate
·2,447,543篇论文数据，部分数据来源于NoteExpress
并从对机动车尾气污染贡献率削减方面提出了城市出租车的选型的科学建议。
Based on above works some measures to reduce contribution rate of taxi emission to urban atmospheric pollution were proposed.
机动车行驶过程道路扬尘是城区颗粒物污染的主要因素，其贡献率可达30% ~ 50%。
The contribution rate of the road dust to particulate concentration in the urban area is 30% ~ 50% during motor vehicle running.
最后通过多元逐步回归模型计算出各污染源对南京市大气颗粒物中半挥发性有机物的贡献率。
Lastly the percentage contributions of various pollution sources to SVOCs on airborne particulates in Nanjing city were calculated using multiple regress models.
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