大连市科委重点基金项目 (No 199995 );辽宁省科技基金项目 (No 9910 60 0 2 0 2 )
Two biofilters,RA which had been exposed to varying concentration of ethyl acet ate for 20 days and RB which had been exposed to varying concentration of toluen e for 20 days, were used to remove mixed gas of ethyl ac...