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In this paper, research progress in the heat resistant modification of phenolic resin was introduced.
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摘要对酚醛树脂的耐热改性研究进行了综述。 |
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In this paper, research progress in the studying of high efficiency halogenation agent in recent years was reviewed and the application of a series of high efficiency halogenating reagents in halogenating substitution reaction and halogenating addition re
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本文对近年来在高效卤化试剂研究方面取得的进展进行了综述,介绍了系列高效卤化剂在卤化取代反应、卤化加成反应等方面的应用。 |
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In this paper, resonant characteristics of the meander-line dipole antenna depended on times of meanders, the height of meanders and the angle of meanders are analyzed.
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摘要本文研究了由矩形弯折线构成的偶极子天线的谐振特性,分析了弯折线偶极子天线的弯折次数、矩形弯折的高度以及弯折角度等参数对天线谐振特性的影响。 |
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In this paper, room management and maintenance of the problems encountered and solutions often put forward several proposals, which can effectively improve the administrative efficiency of computer room.
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本文针对机房管理与维护中经常遇到的问题及解决方法提出几点建议,可有效提高计算机机房的管理效率。 |
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In this paper, scale models are used to study local scour around bridge piers and abutments, and the scour pit pattern and maximum scour depth, which may serve as a reference for engineering design, are given.
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采用系列模型试验方法,对具体工程大型桥墩在水流和波流共同作用下的局部冲刷分别进行研究,提出了冲刷坑形态和最大冲刷深度,供工程设计参考。 |
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In this paper, several kinds of and their magnetic characterization are reviewed.
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本文就单分子磁体的研究背景和意义、单分子磁体的种类、结构及磁学表徵作一概述。 |
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In this paper, several methods of toxicity assessment are emphatically introduced, for which comparisons are made.
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为此,重点介绍了几种常用的烟气毒性的评估方法,并对这几种评估方法进行了比较。 |
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In this paper, sloshing response of liquid in storage tank under horizontal seismic excitation was analysed with finite element method considering interaction between storage tank and flexible soil foundation.
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摘要在考虑地基与储罐相互作用的情况下,采用有限元法对储罐在水平地震荷载作用下的液体晃动反应进行了分析。 |
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In this paper, solutions to some linear equations of the second order with expository functions by composition are discussed.
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摘要文献[1]讨论了含幂函数的一类二阶线性方程。本文讨论合成法解一类含指数函数的二阶线性方程。 |
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In this paper, some especial higher power equation be enumerated, just like Binomial equation or Reciprocal equation, for people can't fine common extract roots formula about five and above power equation.
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摘要基于五次或五次以上方程没有一般通用的求根公式,本文列举了一些特殊的高次方程的解法。 |
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In this paper, some generally recognized similar laws for the shock wave of underwater explosion were explained, in order to show that there is no alternative choice.
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因此文献中有关水下爆炸相似律的描述就显得特别简单、笼统和模糊。 |