查询词典 variational method

This paper analyzed the mechanism of concurrent operation conflict in collaborative CAD system.It presented the general expressing method of operation order,put forward the versatile distinguishing inferential method based on this description,and this method is applied to the analysis of concurrent operation conflict in 2D graphics system and 3D feature modeling system of products based on field knowledge.The results oftest show that this method is feasible with a high collaborative efficiency.

分析了协同CAD系统的并发操作冲突的机理，给出了操作命令的一般表示方法，提出一个通用的基于该描述的冲突判别推理方法，并基于领域知识将该方法用于二维绘图系统和三维产品特征建模系统中的并发操作冲突的分析，实验结果表明该方法可行，协同效率高。

The index of flame retardant property,material,product structure and relevant method of test of the antiflaming flexible cable is established according to the standard of GB/T18301-2001《the Third Part of Burning Test of cables in the Condition of flame:Method of Buring Test of Bunchy Wires and Cables》.The Cable will emanate the bad gas in buring to causethe the second calamity,so the smoke capacity of the cable in burning should be tested according to the standard of IECl034-2(1991)《the Second Part of Method of Smoke Concentration Test ofCable 1n Burning:Procedure and Requirement ofTest》The Liberation of Gas 1n burning is tested according to the standard of IEC754-2(1991)《the Second Part of Test of Liberatlon of Burning Materlal from Cable:Method to Measure the ACidity with the Measured PH and Conductlvltv》.

对阻燃型软电缆所要求的阻燃性能指标，是根据GB/T18301-2001《电缆在火焰条件下的燃烧试验第3部分：成束电线或电缆的燃烧试验方法》标准的规定而确定其电缆的材料要求、产品结构和相应的试验方法；对于耐火性试验，并考虑到电缆在火焰中会散发有害气体，造成&二次灾害&，所以还规定了对电缆燃烧时发烟量进行试验，按IECl034-2(1991)《电缆在特定条件下燃烧的烟浓度试验方法第二部分试验步骤和要求》以及燃烧时析出气体按IEC754-2(1991)《取白电缆的村料燃烧时析山气体的试验第二部分用测量PH值和导电率来测量气体酸度的方法》进行试验。

Alumina sols of different content were prepared by using Al3 as precusor, water as solvent, nitric acid as peptizer, ethylacetoacetate and polyvinylpyrrolidone as modified menstruum. We used dip-coating method and spin-coating method prepared of alumina films on the plane glass and used dip-coating method and rising liquid method inside the wall of the fiber.

以仲丁醇铝为前驱物、水为溶剂、硝酸为胶溶剂、同时加入乙酰乙酸乙酯和聚乙烯吡咯烷酮作为改性剂制备了不同浓度的氧化铝溶胶用提拉法和旋覆法在平板玻璃上镀膜，同时用提拉法和液面上升法在石英毛细管内壁上镀膜。

In this thesis, PESA was synthesized using two different methods: the conventional one-step method and the two-step method we have developed. The corresponding products obtained by the one-step method and the two-step method are named PESA I and PESA II, respectively.

本文采用传统的一步法和非传统的两步法合成了PESA Ⅰ和PESA Ⅱ两种不同的产物，并通过单因素和正交试验确立了最佳合成路线。

The traditional method such as high temperature solid phase method, sol- gel method and combustion method adopted to prepare red long-lasting phosphoresce were introduced.

及传统的高温固相法以及溶胶-凝胶法、燃烧法等稀土红色长余辉材料的制备技术，提出了对红色长余辉材料今后发展的看法。

In this study, used Multiplex-PCR method to detection AAC of AAC_ITS and AAC_rpoB, used Multiplex-PCR method to detection BG of BG_ITS、BG_gyrB and BG_rpoD, used Multiplex-PCR method to detection PCH of PEC_ITS, idgA and idgB, used Multiplex-PCR method to detection AAC、BG and PCH of AAC_ITS、BG_ITS、PEC_ITS and idgA. The result reveals which were designed primer of specific can detect the existence of different phytopathogenic bacteria. These technique will use to develop the standard operation procedure of phytopathogenic bacteria disease in orchids.

在多引子组之研究上，AAC_ITS及AAC_rpoB之组合可用於褐斑病菌之检测；BG_ITS、BG_gyrB及BG_rpoD之组合可用於叶斑病菌之检测； PEC_ITS、idgA及idgB之组合可用於软腐病菌之检测；AAC_ITS、BG_ITS、PEC_ITS和idgA之组合则可用於三种兰花细菌性病原之检测，分析结果显示所使用之引子组可以快速、灵敏且专一性的检测细菌性褐斑病、细菌性叶斑病及细菌性软腐病，并且缩短检测时间，未来将可以应用於兰花细菌病害之监测。

Synthesizing new compounds are always the goal of chemist. Recent ly, the progress of the hydrothermal synthesis method is giving a new method to synthesize new compounds. The hydrothermal synthesis method is prefectly applied to synthesizing the tunnling materials, micro-and meso-porous mat erials as well as some new materials, so this method obtained the intrest of che mist.

中文题名含有杂原子的金属－氧簇(V，Mo，W，P，As)的合成与结构副题名外文题名论文作者李亚丰导师裘式纶教授学科专业无机化学研究领域\研究方向学位级别博士学位授予单位吉林大学学位授予日期2002 论文页码总数70，68页关键词金属－氧簇化学多酸化学无机合成化学馆藏号BSLW /2003 /O611 /3 合成新结构和新组成的化合物一直是化学家们的目标，近代水热合成技术的发展为合成亲新化合物提供了一种新的方法，水热由于在合成具有孔道结构、微介孔材料以及一其它一些新型材料具有其它方法无可比拟的优越性，因此，越来越受到人们的重视。

The spectral element method based on a weak elastic mechanical equation extends the equation in the form of spectral with the idea of the finite element method. So it combines the advantages of the finite element method with the ones of the pseudospectral method.

谱元法是基于弹性力学方程的弱形式，运用有限元的思想在单元上进行谱展开，理论上该方法具备有限元适应任意复杂介质模型的韧性和伪谱法的精度。

The field work technologydata-processingresults for process of seismic refraction method and high density resistively survey method are described in detail in this paper. To begin with, the application-effect each method has been showed respectively; at second, the application-effect of integrated geophysical prospecting method was showed in the exploration of railway tunnel, in this part, the fracture zone, faults and their trends were all inferred based on the application-effect of integrated geophysical prospecting methods.

文中详述了地震折射法和高密度电法的野外工作方法技术、资料处理，并根据勘察目的，先单独解释两种勘察方法的效果，再综合两种方法对该路段的地质构造情况进行综合解释，推断出该高速铁路路段中的破碎带、断层及其走向等不良地质情况。

Methods:On the basis of traditional method and method set in Chinese Pharmacopoeia(2005),TLC method and HPLC method for Rhaponticin examination were established.

对传统方法、中国药典方法检查土大黄苷进行了研究，在此基础上建立了以土大黄苷为对照的薄层色谱法和高效液相色谱法检查大黄药材及饮片中土大黄苷。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。