常见例句A series of studies on reaction condition have obtained optimum condition permitting better yield(41.5%)of carotenal shows that the published literatures(10%). 研究了影響衚蘿蔔醛産率的因素;得到了最佳反應條件;産率甲文獻報導的10%25提高到41.;5%25。 返回 carotenal