这句怎么翻译?关于丁二烯? 老外发来一个关于丁二烯的资料,下面这句不会翻译了: the effluent of the catofin unit feeding the isoprene unit will have 48 to 50 percent isobutylene along with unreacted isobutane and a few percent normal butenes and butadiene. the flow rate of the catofin unit effluent is 38,000 to 40,000 kg/h. [ ]查看更多