摘要
With a rapid increase in volume of ve-hicles in the world,the polution causedby the automobile exhausted gas has be-come more and more serious.This problemhas brought to our government’s atten-tion.In Beijing,regulations regardingthe supervision of the exhaust have beenissued.At the Fifth National Meeting on RECatalytic purification of Automobile Ex-haust held in Beijing 1989,the partici-pants from institutes,universities,andfactories all over the country reportedand discussed the methods of purifica-
