It is important work for scientific researchers to improve utility ratio of solar energy , especially to improve conversion efficiency of solar cells , there are many ways which can be used to improve it , depositing antireflection films on solar cells is the most doable one , and can debase the cost of solar cells 提高太阳能的利用率,尤其是太阳电池的光电转化率是科研工作者研究的一个重要方向。对于提高太阳电池的光电转换效率的方法很多,但比较可行又能降低太阳电池成本的方法是在太阳电池表面形成一层减反射薄膜,以减少太阳电池表面对阳光的反射损失。
As more and more needs for international academic communications , and internationally severe competition for the international scholarly journals market after china joining the wto , the problem of internationalization of scientific journals intrigues the wide attention by scientists , journal editors and journal supervisors 随着国际间学术交流需求的不断加强和我国加入wto带来的国际范围内学术期刊市场竞争的日益激烈，科技期刊的国际化引起了科研工作者、期刊编辑和期刊管理者广泛的关注。
Since 1980s , chinese foreign language teaching scholars have been looking at which methods of teaching foreign language would be suitable for chinese middle school english teaching . one of the major problems still lies in whether to use chinese in english teaching or not . in recent years , many scholars begin to re - evaluate the usage of chinese in english teaching 80年代后期以来，中国中学英语界的教学科研工作者们也开始不断探索适合中国中学英语教学的模式，一个主要问题仍是中国中学英语教学是否应该用学生的母语-汉语来进行，或者应避开汉语而用全英语式的教学模式，抑或是借助汉语来进行英语教学
With the development of the computer and calculating dynamics , in recent years many researchers from different countries begin to research the coupling between train and line . the research on the coupling between vehicle and brid ge with the finite element method becomes one of the very important constitutional parts 随着计算机和计算力学的发展，近年来各国铁路科研工作者开始对列车?线路耦合系统进行研究，其中，车?桥耦合振动的有限元分析研究就是近年来发展起来的一个重要组成部分。
