modals中文什么意思

例句与用法

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1. Researches the feasibility of parametric design based on 3d modals , though at present , the research on parametric design is one of focus in the researches on cad system , but current parametric design is mostly based on the 2d modals , the research on 3d modals is barely of starting
   目前参数化设计研究是cad系统研究的热点，但参数化设计研究主要是基于二维模型的基础之上，对于三维参数化设计的研究只是处于起步阶段。据此，本文研究了三维模型参数化设计的可行性。
2. So we put forword some mathematics modals for the answer of the question . the modals are not only include the classical " secretary question " but also are more common and more concrete than the classical " secretary question " . at the same time we put forward a new loan rule for the decision cost
   因此我们提炼出了几个包含经典”秘书问题”但比经典”秘书问题”更一般、更有实际意义的模型，通过计算各种相关的概率和期望，给出该问题的解，同时还对有决策时间成本的情形，提出了一种新的决策规则并讨论其性质。
3. Different modals of sr motor are completely calculated and analyzed by using ansys in this paper . this paper also presents a detailed research on the stator mode shapes and natural frequencies of srm by use of 3d finite element technique , based on its real structural model for the first time . when the reseach conclusions is compared with the former results , a conclusion will be drawn , that is the rationality and approach to reality of the modeling are essential to the fe analysis of motor properties
   应用有限元软件ansys对电机进行了不同建模方法的模态分析与计算，并首次基于真实sr电机定子模型，用3d有限元方法研究了定子模态和固有频率，从取得的一系列研究结论，与以前的研究成果进行对比，可以得出结论：模型建立的合理性和逼近真实性对于电机各类性能的有限元分析至关重要，要得到尽量准确的结果，必须建立尽量逼近实际的模型。
4. Abstract : aiming at the variety of modals of nonlinear systems , we proposed a general parameter estimation method based on genetic algorithms ( ga ) , which can be used in most kinds of nonlinear system modal . this method was applied to simulating parameter estimation of several different examples of nonlinear systems . the results proved that the method is effective and useable
   文摘:针对非线性系统模型的多样性，提出适用于多种非线性模型的基于遗传算法的参数估计方法，并以多种非线性模型为例作了仿真研究.结果表明，遗传算法是非线性系统模型参数估计的有效工具
5. Then by data - inputting the cruising data and experimental data , the attribute database corresponding is established . therefore using specialty analysis and calculate modals , the agriculture land appraisal of quzhou county is finished step by step . in the course of application , the system has be verified and modified
   实例研究以黄淮海平原曲周县为例，在农用地估价系统中建立土地资源空间数据库与属性数据库，在专业分析与计算模块中完成了曲周县农用地价格定量化评估，对系统进行了检验与修正。