目的: 建立鸢尾原料中鸢尾酮含量的分析方法.Objective : To establish a method for determination of Irone in Iris tectorum.本文综述了名贵香料鸢尾酮的合成进展.This paper summarized the in irons by synthesis.采用山苍子油提取得到的柠檬醛和丙酮等为主要原料合成鸢尾酮.Irone was obtained throug...
她还是个小姑娘的时候就分担起照顾弟弟的责任。She had shared responsibility for her brother since girlhood.这对伴侣分担照看孩子的责任。Both partners shared childcare.男人分担多少家务和照看小孩的工作？How much do men share housework and the care of the children?...