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...
All over the ship the bulkheads sweated a film of oil and water.船里上上下下的舱壁到处沾着一层油水.I saw that rusting bulkheads and decaying decks had given way during the winter.我看见生锈的舱壁和朽坏的舱面已在冬季坍塌.For watertight bulkheads, how do you ...
那只狗阴郁地盯着我们看了几分钟。The dog gazed at us lugubriously for a few minutes.他面色阴郁地凝视前方，假装没听见那些冷嘲热讽。He stared sullenly into space, pretending not to hear the jeers.她就那样阴郁地坐在那儿。She just sat there looking morose....