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1)  in recent 20 years
20年来
1.
The Chinese and international scholars views in recent 20 years mainly include"Global Capitalism","Post-Capitalism","Late Capitalism","Financial Capitalism","Post-Imperialism","National Monopoly .
20年来中外学者有关此问题的主要观点有"全球资本主义说"、"后资本主义说"、"晚期资本主义说"、"金融资本主义说"、"后帝国主义说"、"国家垄断资本主义说"、"社会资本主义说"、"超国家垄断资本主义说"、"跨国垄断资本主义说"、"国际垄断资本主义说"等。
2)  The next two decades
未来20年
3)  the Twenties of the 20th Century
20世纪20年代以来
4)  1950s
20世纪50年代以来
1.
The Development of Geography and Comments on Geographical Thought in Chinese Since 1950s;
20世纪50年代以来中国地理学的发展及思想评述
5)  since 1980s
20世纪80年代以来
1.
The Three Big Trends of the Development of China s History Science Since 1980s;
20世纪80年代以来中国史学发展的三大趋势
2.
Chinese ecological poetry developed from sprouting, growing and flourishing,and gradually formed unique appreciation qualities such as hidden county love-knot,full-bodied romantic charming and clear realistic concern,which showed the social responsibility and significance of poetry when environment had been badly ruined and environmental protection had been highly called for since 1980s.
在生态环境遭受工业文明的重创和环境保护呼声日益高涨的背景下,20世纪80年代以来自觉意义上的中国生态诗歌由萌芽、发展到迅速繁荣,逐渐形成了潜隐的乡土情结、浓郁的浪漫风韵和真切的现实关怀等独特的审美品质,彰显了诗歌的社会责任和意义。
6)  20 years
20年
1.
Since the 1980s,the world community development and the rule of law entered a new phase;under this background,great progress are made in administrative control legislation both in the mainland and Taiwan in nearly 20 years,in the process of the rule of law exists larger comparability.
20世纪80年代以来,世界各国社会发展和法治发展进入了一个新的阶段,在这一大背景下,大陆与台湾地区近20年在行政控权立法方面均取得了较大的收获,而且在法治进程方面存在着较大的可比性。
2.
In the 20 years from 1981 to 2000 in China, the teaching pattern research ran through three stages of introduction, theoretical exploration and pattern construction and its content covered the concept, structure, features, function, category, choice, application and construction.
从1981年到2000年的20年里,我国的教学模式研究大体经历了以介绍引进为主、理论探索为主和模式建构为主三个研究阶段,研究的内容涉及教学模式的概念、结构、特点、功能、分类、选择、运用与建构诸方面。
3.
The result indicated: during 20 years the Korean National Minority student\'s growth level has certain scope to enhance, after before the growth rate and the speed performance are“, quick, slow”the characteristic, the student build already started from“the bean sprouts”to approach the transformation“symmetrically”.
利用吉林省1985、1995和2005年朝鲜族学生体质调研数据,采用文献资料法、数理统计法和专家访谈法,对朝鲜族学生体质状况作20年动态观察、对比和分析,目的为中国朝鲜族学生体质健康水平的提高提供科学依据。
补充资料:16,17-Epoxypregna-5,9(11)-diene-3,20-dione3,20-diethyleneketal
CAS:173350-27-1
分子式:C25H34O5
分子质量:414.54

中文名称:16α,17α-环氧孕甾-5,9(11)-二烯-3,20-二酮3,20-二乙二醇缩酮
16α,17α-环氧孕甾-5,9(11)-二烯-3,20-二酮双(环1,2-乙二基缩酮)

英文名称:16,17-Epoxypregna-5,9(11)-diene-3,20-dione3,20-diethyleneketal
16,17-Epoxypregna-5,9(11)-diene-3,20-dione cyclic bis(1,2-ethanediyl acetal)

性状描述:结晶。熔点160℃。

生产方法:可用16α,17α-环氧孕甾-4-烯-3,11,20-三酮(即16α,17α-环氧-11-酮基黄体酮)经(3-位;20-位酮基与乙二醇)缩酮化、(11-位酮基)还原(成11-位羟基)、(9,11-位脱水)消除[形成9(11)-位双键]制得该品。

用途:倍他米松的中间体。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条