menthyl acetate

Result: Four triterpenoids were isolated and identified as bauerenyl acetate(I), friedelin (Ⅱ), epifriedelanol (Ⅲ),20(30) taraxastene 3β,21α diol(Ⅳ).结果 :分得并鉴定了 4个三萜化合物 ,分别为降香萜醇乙酸酯 (bauerenylacetate,I) ,无羁萜酮 (friedelin ,Ⅱ ) ,表无羁萜醇 (epifriedelanol,Ⅲ ) ,2 0 (30 ) 蒲公英烯 3β ,2 1α 二醇 [2 0 (30 ) taraxastene 3β ,2 1α diol,Ⅳ ]。kgs汉语字典

This paper has observed the significance of Laozi s methodology through the dynamic process of east and west thinking development,and proposed that the relationship between Tao,one,two and three is circularly progressive,which can be divided into three levels, the separation of the origin,the separation of philosophy and the separation of aesthetics.从中、西方思想发展的动态过程考察老子思想的方法论意义,认为:道与一、二、三的关系是一种循环递进的关系,对这种循环递进的区分分为三个层次:初级的区分是本源的区分,次级的区分是哲学的区分,深层次的区分是美学的区分。kgs汉语字典

The Japanese have long favoured odd numbers and especially like to use "three" to describe things.日本民族钟情于奇数,尤其喜欢利用奇数“三”表达种种事物,“三”在语言运用中产生的社会文化伴随意义值得研究。kgs汉语字典

This article discusses the origin and features of the number “three”.讨论数词“三”的产生及其特点。kgs汉语字典

Comparison and analysis of Ihe word number "three" are made about Ihe same implications and characteristics among the cultures of various nationalities in the East and the West.比较分析数目词“三”在东西方各民族文化中的共同涵义及特点。kgs汉语字典

Explanation of triple absorption process for sulphuric acid production from off-gases with high concentration of sulphur dioxide;高浓度二氧化硫烟气三转三吸制酸工艺几点析疑kgs汉语字典

Application of "3-3-4" Drug Maintenance Examination Method;“三三四”(yào)品养护检查方法的应用