基本解釋溴丁烷英漢例句雙語例句Bromacil was synthesized using 2-bromobutane and urea as the starting materials in three steps including condensation, cyclization and bromination with total yield of 61%.以2-溴丁烷和尿素作為起始原料，經縮合、環(huán)化、溴代三步反應得到除草定，總收率為61%。bromobutane更多例句詞組短語短語bromobutane E 溴丁烷bromobutane U 溴丁烷bromobutane ? 溴丁烷n -Bromobutae 溴丁烷1 -bromobutane 溴丁烷;溴代正丁烷;溴正丁烷;正溴丁烷bromobutane更多詞組專業(yè)釋義經濟學溴丁烷