The air pollution caused by au-to emission becomes more and moreserious in China, which arouses Chinese Government to attach great attention to controlling auto tail gas pollution as a very important task. In Beijing,...The air pollution caused by au-to emission becomes more and moreserious in China, which arouses Chinese Government to attach great attention to controlling auto tail gas pollution as a very important task. In Beijing, the municipal govern-ment has taken the lead in imple-menting the emission standard e-quivalent to European No. Ⅰ stan-展开更多
文摘The air pollution caused by au-to emission becomes more and moreserious in China, which arouses Chinese Government to attach great attention to controlling auto tail gas pollution as a very important task. In Beijing, the municipal govern-ment has taken the lead in imple-menting the emission standard e-quivalent to European No. Ⅰ stan-
