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This paper by using examples of disubs tution cyclohexanes with different and identical functional groups, examines some stereochemistry problems puzzling to stuaents, such as the configuvation conformation, and enantiomorphism isomers, and presents some
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摘要以基团相同和不同的二取代环己烷为例,分析了环己烷衍生物的构型、构象和对映异构等学生易模糊的立体化学问题。 |
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This paper calculates the thermal insulation thickness of the steal sheated stealdirectly buried steam pipe with air thermal insulation layer under the condition of different temperatures, and compares it with the system without air thermal insulation lay
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摘要对不同介质温度条件下有空气保温层的“钢套钢”蒸汽直埋管保温结构厚度进行了数值计算,并将计算结果与无空气保温层的保温结构厚度进行了比较。 |
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This paper calls for a multi-disciplinary approach to the research into issues of overseas Chinese villages.
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摘要探讨如何在侨乡研究中运用多学科方法。 |
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This paper carried out the preliminary inquiry about how to make Xinjiang forest park resources unity and share using modernized network technology, and provides one effective way to utilize the existing forest park resources.
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本文就如何利用现代化的网络技术对新疆森林公园资源整合、共享进行初步的探索,为更加有效地利用现有的森林公园提供一个有效的途径。 |
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This paper carries on the 3D finite element structure analysis for power house monolith with a bulb turbine hydropower station located in the upstream of Huang River as the carrier.
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摘要以黄河上游拟建的某灯泡贯流式水电站为载体,对厂房坝段整体进行了三维有限元结构分析。 |
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This paper categorizes Chinese Character Reference Database, which exists in different period, into three types: text file, database file and binary file, and presents some management technologies on these files.
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根据实践的经验,文中将不同阶段的汉字码本数据库分成文本文件形式、数据库码本形式和二进制文件形式,并且分别讨论了对这些码本的管理技术。 |
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This paper challenges this view from both theoretical and empirical analyses.
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然而本文从理论和实证两个方面对这一观察提出了若干质疑。 |
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This paper chiefly discusses how changes of meaning cause polysemy, loss of motivation, and obtaining and loss of synonymy.
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摘要该文探讨了英语中词义的变化如何导致词的多义、词的理据的丧失以及同义词的获得与丧失。 |
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This paper clarified both theoretical features and practical purports of Greek metaphysics, Christian metaphysics and Kantian metaphysics, and briefly analyzed the germination, development and change of the concept of ultimate concern.
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本文阐明了希腊形而上学、基督教形而上学、康德的形而上学等范式的理论特征和实践旨趣,并简要分析了终极关怀思想的萌芽、发展及其现代演变。 |
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This paper clarifies the function of institutional investors in corporate governance through correlation of institutions and accounting information.
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摘要本文从机构投资者与会计信息相关性之间的联系来说明机构持股在公司治理中的作用。 |
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This paper classifies and analyses the cause of abnormal sound of automobile shock absorber.It gives two kinds of new utility engineering concepts called resonance transmission chain and multi-hole throttle law of shock absorber.It also exponnds some tech
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该文对汽车筒式减振器异响的成因进行了系统的分类和分析.提出了减振器共振传递链和减振器多孔截流律等工程实用概念.文中还指出了抑制和消除各类减振器异响的技术途径,并对减振器异响研究的前景进行了展望. |