做模型

Recent cutoff for goodness of fit indices in structural equation analysis proposed by Hu and Bentler (1998, 1999) were discussed.

讨论了Hu和Bentler(1998， 1999)推荐的检验结构方程模型的7个拟合指数凖则，对这7个指数的历史、特点和表现做了比较详细的述评。

Theory survey part introduces some concepts relative to Item Bias and Differential Item Functioning, as well as the recent development and some ordinary methods, especially parametric IRT approaches used to explore DIE Based on the response the 21 optional item of the laws pertaining to the economy (both dichotomously and polytomously scored items) in 2004 intermediate economic test throughout country, a parametric procedures using the Graded Response Model (GRM, Samejima, 1969) and MULTILOG (Thissen,1991) was used to detect gender-related DIF, nation-related DIF, district-related DIF and work classification-related DIF.

理论综述部分主要介绍了项目偏差、项目功能差异的有关概念、目前国内外的研究状况以及检测DIF的一些常用方法。实证研究部分，应用DIF检验的参数方法和MULTILOG软件，在项目反应理论Samejima等级反应模型下，对2004年度全国经济专业技术资格考试的经济基础中级试卷中经济法部分21个项目做DIF分析。

I also participated in the field, Dr. XX group visited a variety of related organizations and government departments to collect information and publicity for this model of speech.

我还参加了 XX 博士的野外课题组，走访各种相关的组织和政府部门去收集信息和为此模型做宣传演讲。

It took us 3 hours to take the materials to process on afternoon. After the supper, we put the parts together to finish our first model with glue. In order to play gules' best function, we decided to test our model tomorrow.

下午我们动手做第一个模型了，花了3小时把材料加工完毕，到了晚上我们进行组装，为了使胶水发挥最佳的效果，我们决定明天再试验。

In this paper,the fundamental theory of this piezoelectric micro gyroscope is presented.

本文给出了它的物理模型，并用PZT陶瓷晶体做了宏观模拟实验。

He uses new york's harlem district as his model in his proposal.

他用纽约的黑人住宅区做为他建议的模型。

Also under a series of harmonic loadings and earthquake histories, the joint opening behavior and acceleration response of the arch dam model with reinforcement were tested.

通过系列谐波和地震波试验，以及拱坝分析有限元程序ADAP-88所做的计算对比，验证了ADAP-88程序中的三维非线性接缝模型的合理性。

Compared with the general single-tube model, this paper takes the horizontal bundle absorber as the research object, analyses the principal of dual-solution two-phase flow heat and mass transfer in absorber, introduces the wetting ratio to describe the incomplete wetting performance and view it as the changeable parameter to explain it's influence to total performance of absorber and cooling capability of evaporator.

与以往广泛采用的单管模型相比，本文采用了实际中应用较多的水平管束式吸收器作为研究的对象，对吸收器内二元溶液两相流动传热传质机理做了深入细致的分析，引入了润湿率 WR 这一参数来衡量实际运行中出现的管壁的不完全润湿特性，并将其作为可变参数分析它对吸收器总体性能以及蒸发器制冷能力的影响。

Considering transaction cost, Hedger's attitude to risk, variance of foreign exchange rate , with Von Neumann Morgenstern utility function and Bernoulli principle, this paper analyses optimal hedging of the foreign exchange risk during the import/export with forward/future contracts, and the influence of the above mentioned factors on the optimal hedge rate.

本文在前人研究基础上，考虑交易费用，决策人对风险的态度，汇率相对风险大小等因素，用Von Neumann- Morgenstern效用函数和 Bernoulli决策法则建立了研究利用远期/期货和约做外汇套期保值问题的一般模型，然后具体分析了一种典型情况下的最优套期保值率的性质。

Then the solid geometry model is entered into ANSYS to do the pre-treatment of FEM. It is disassembled by hexahedron elements.

将几何模型导入到ANSYS中做有限元分析的前处理，采用六面体单元对重力坝进行网格划分。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。