Since 1979 China has collected 24.7 billion yuan in pollutant discharge fees.1979年以来,全国共征收排污费247亿元.Knowledge of any given exposure to air pollutant mixtures is largely inadequate.关于任何特定的暴露于空气污染混合物中的知识,都是极为欠缺的.We will dis...

n.污染物...

pollutant的复数形式为：pollutants...

pollutant的音标：pollutant的英式发音音标为：[pə'lu:tənt]pollutant的美式发音音标为：[pə'lutnt]...

This chapter describes methods of estimating airborne pollutant concentration distrubutions associated with various emission sources.本章论述几种有关各种排放源的大气污染物浓度分布的估算方法.A pre - dicing method for calculating the distribution of ...