It will be an important period of economic and social development five to ten years in future . in order to match the task and goal of our province and guarantee to realize the third pace of developing strategy , facing the new situation of domestic and overseas economy , science and technology , society , especially the competition of economy and talents 今后五年到十年是河北省经济、社会发展的重要时期，为了全面配合完成我省的任务与目标，确保实现第三步发展战略，面对国内外经济、科技、社会发展的新形势特别是经济、人才激烈竞争的态势提出了科技人才开发策略研究。
1920s - 1970s is the important development period of the suburbanization of the united states , during which america had finished the transformation from urban nation to suburban nation , so the thesis chooses the suburbanization of the united states ( 1920s ? 970s ) as its research object and uses the theory of modernization as its guidance 20世纪20年代? ? 70年代是美国郊区化急剧发展的重要时期，美国完成了由城市化国家向郊区化国家的转变，因此，本文选取这一时段的美国郊区化作为研究对象，并以现代化理论作为指导。
In addition , insulin - ir cell , chromogranin - a - ir cell , testosterone - ir cell and epithelial membrane antigen - ir cell were not detected in the digestive tract of alligator sinensis embryos . the kinds and the numbers of endocrine cells in the digestive tract and glands were less at early prenatal stages but increased greatly in the midterm of development . in the digestive tract of last prenatal stages , it was stomach that had the most endocrine cells and might play the most important role in regulating the growth and differentiation of the digestive tract , the duodenum was in the second place 纵观扬子鳄胚胎消化道和消化腺内分泌细胞发生的情况，可得出如下结论： ）胚胎发育早期，胰腺内分泌细胞的数量和种类较多，可能是早期胚胎重要的内分泌调控部位；胚胎中期消化道和消化腺内分泌细胞的数量和种类增加最多，是内分泌细胞分化发育的重要时期：胚胎晚期，以胰腺和幽门、十二指肠的内分泌细胞最密集，为孵出后的消化和吸收的功能调控做好生理准备。
As a part of historical and theoretical research of chinese early - modern city planning , this paper put great emphasis to study the changing process , content and practice of beijing city planning during early - modern period , analyzes the characteristic of every period , takes some significant period into account , tries to reveal the characteristic of beijing city planning and city development during early - modern period , discusses the academic value and modern reference as a feudal capital on chinese early - modern city planning 作为中国近代城市规划历史与理论研究的一个组成部分，本论文着重考察和研究了北京近代城市规划的历程演变、城市规划的内容与实践，并分析了近代城市规划在各个时期的特点，且对较重要时期的规划活动进行深入剖析，揭示了北京近代城市发展与城市规划历史的特征，探讨了北京作为古都型的近代化城市，其近代城市规划在中国近代城市规划史研究中的理论价值与现实意义。
The orthodox taoism was reformed and the taoist musical tradition came into being formally in the song period of the southern dynasties , when there were rich historical materials , especially the documents written by lu jingxiu , leader of nantianshi taoism , which showed typically lu ' s importance in the history of taoist musical development 摘要南朝刘宋时期是正统道教改革和道乐传统正式形成的重要时期，此期间道乐史料丰富，尤以南天师道领袖陆修静所撰文献为突出代表，集中反映了陆氏在道乐发展史上的重要地位。
In the progress course of classical chinese garden , tang and song period is an important stage , in which some transformations took place in the style of classical chinese garden . accordingly , the aim of this paper is studying on the changes of classical chinese garden in this stage and revealing the progress course of it 在整个中国古典园林的发展过程中，唐宋时期是一个承上启下的重要阶段，它是中国古典园林风格发生转型的一个重要时期，因此，对该阶段私家园林的发展变迁过程进行研究，并揭示其内在的发展脉络正是本文的主要目的所在。
It also reflects the fact that a decade on , despite shifting political and social change , the work of the 12 selected artists retains the power and authority to contribute to contemporary debate , and to this end the exhibition includes both iconic works from the 1990s and more recent work that reveals the artists current practice “余震”讲述的正是这段英国当代艺术变革的历程。标题揭示了英国当代艺术发展这一重要时期的艺术创作状态及其后续效应，同时也反映了一个事实，即被选出的这12位艺术家的作品在十年之后仍然保留着其特有的权威和力量。
From now on to the end of 2020 is an important development period for yunnan economy , and we should accelerate the course of industrialization and take a new road to industrialization , so that we can realize the arduous task of making the per - capita gdp reach to us $ 3000 , and let the poverty - stricken people and the people in yunnan province become well - off 从现在起到2020年底，是云南经济发展的重要时期，要实现人均国内生产总值3000美元，使较多贫困人口与全省人民同步实现小康这项光荣而艰巨的任务，应加快工业化进程，走新型工业化道路。
