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Abstract A new, stereo-controlled method of aldehyde group synthesis is summarized, which is used to synthesize aldehyde group by introducing thiazole ring and has a wide appreciation for bio-activated compounds synthesis.
中文意思:
摘要本文综述了一种新型可立体控制的醛基合成方法––利用唑环引入醛基的方法以及它在具有生物活性物质合成中的应用。


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Abstract : based on analyzing the planed scale,developing speed, management system and external environment of highway network, it is researched for the mechanism to construct the greatness in quantity and extent of toll road, irrationality of the network摘要:通过分析全国公路网规划的规模、建设计划、管理体制和外部环境因素,研究收费公路规模大、范围宽的形成机制,以及其中存在的路网结构问题、社会政治矛盾和不良社会经济运行效果,对我国公路网的规划建设和投资管理体制提出了改进建议。
Abstract : reduction to absurdity is an important mathematical proof, and its analysis, synthesis, has a long history, applications are very wide.摘要:反证法是一种重要的数学证明方法,它和分析法、综合法一样,有着悠久的历史,应用也相当广泛。
Abstract : the self2absorption of optical source is introduced when measuring LEDs luminous flux with integrating spheres , and two correction methods is recommended.摘要:介绍了积分球测量中光源体的自吸收效应,提出了两种校正方法。
Abstract :This article Introduced the water-base printing ink structure, the essential component and the environmental protection question, and analyzed the water-base printing ink industry present situation, and the technological innovation in china , si摘要:介绍了水性油墨构造、主要成份与环保问题,分析了中国水性油墨工业现状、发展态势、技术创新,同时对水性油墨在印刷中的应用前景与市场展望作了概述。
Abstract :Wireless is passed down as one of the most convenient and easy deployment of the technology.内容摘要:无线电是流传下来的一种最容易部署和方便使用的技术。
Abstract A new, stereo-controlled method of aldehyde group synthesis is summarized, which is used to synthesize aldehyde group by introducing thiazole ring and has a wide appreciation for bio-activated compounds synthesis.摘要本文综述了一种新型可立体控制的醛基合成方法––利用唑环引入醛基的方法以及它在具有生物活性物质合成中的应用。
Abstract According to the Stratigraphic Guide of China and Its Explanationand based on the general rules for naming stratigraphic units and the principles of priority, a fairly detailed discussion is made on the correct use of the formation-rank names of 摘要以《中国地层指南及中国地层指南说明书》(修订版)为依据,以地层单位命名的一般规定为准绳,以地层单位命名的优先权为法则,对黑龙江省东部地区中生代晚期海陆交互相地层龙爪沟群组级岩石地层单位名称的正确使用问题,进行了较为详细的讨论。
Abstract Although Internet extremely popularized and the way exchanged the information varied now, the facsimile not only has not slackened as the information transmission important tool, instead obtained in the application aspect strengthens.摘要:虽然因特网已经非常普及,人们交流信息的方式多种多样,但是传真机作为信息传递的重要工具不但没有消弱,反而在应用方面得到加强。
Abstract As to using the method of three dimensional finite element, this study has analyzed the stress distribution of the porcelain fused to metal crowns with three different labial margin configurations under the forces from diverse directions.摘要作者采用三维有限元法,对唇侧颈缘三种形态设计的烤瓷冠,在承受不同方向力时,颈缘瓷体的应力变化进行分析。
Abstract Cutter teeth and gear teeth are simplified as mechanical models, The bending deformation at contact nodes is calculated by applying the three-dimension finite element method and analyzing their mechanical condition, the relation curve between sha简介:摘要将刀齿和轮齿抽象简化为力学模型,分析其受力状态,并运用三维有限单元法计算各节点的弯曲变形量。
Abstract Firstly, convert a programming problem with multiple constraints into a programming problem with single constraint, Secondly, several convexification and concavification transformations for the constrained problem with strictly monotone constrain摘要首先将一个具有多个约束的规划问题转化为一个只有一个约束的规划问题,然后通过利用这个单约束的规划问题,对原来的多约束规划问题提出了一些凸化、凹化的方法,这样这些多约束的规划问题可以被转化为一些凹规划、反凸规划同题。
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