查询词典 model theory

The paper introduces the formation of this model and analysis of the model in theory.

从理论上给出了模型的具体形式并简单分析了模型的特点。

This method undertakes comparative getting the area between the spare parts to equation of geometry of the face in model of CAD of different spare parts above all - surface contact relation and type, use amount coming back theory general face - the face expresses to be helix; relative to instantaneous motion next, the helix that goes up to many surface contact undertakes making operation,; of helix of the motion when making the opposite very short time between the spare parts is final, according to the spare parts abut concern plan and abut spare parts move relatively helix, undertook an analysis to assembling instantaneous of whole of the spare parts in the model to concern with drive movably, give out not between the method of calculation of helix of opposite instantaneous motion between photograph adjacent spare parts and them but the judgement method of drive sex.

该方法首先对不同零件CAD模型中面几何方程进行比较得到零件之间的面-面接触关系和类型，并应用旋量理论将面-面相对瞬时运动表示为螺旋；然后，对多个面接触上的螺旋进行交运算，生成零件之间的相对瞬时运动螺旋；最后，根据零件邻接关系图和邻接零件相对运动螺旋，对装配模型中零件整体瞬时可动性和驱动关系进行了分析，给出不相邻零件之间的相对瞬时运动螺旋计算方法和它们之间可驱动性的判定方法。

On the approximation that the ink is non-scattering and its refractive index is nearly equal to papers, we propose a spectral reflectance color prediction model for recto-verso halftone images by making use of the theory of the light propagation in paper with long- and short-distance model and net structure of multiple reflection in the recto-verso halftone images.

在假定油墨是非散射介质以及油墨的折射率与纸张的折射率近似相等的条件下，利用光在油墨与纸张中散射迁移路径长短不同的分程理论和多重内反射的网状结构分析方法，研究了光照射在双面印刷品上的光谱反射规律，建立了双面印刷品的光谱反射色彩预测模型。

Second, in order to analyze the correlation of the shipping and the regional economy, the paper uses quantitative and qualitative methods, including regression model, multiplicator theory, and gray analysis model.

其次，为了分析航运交通与区域经济两者之间的关系，本文从定性分析和定量分析两个方面介绍了不同的相关性分析方法，其中包括回归模型、乘数理论、灰色分析模型等。

According to the complexity of marine safety management decision making,the model of multi-goals information utility for marine safety management decision making is constructed in the paper.Based on multi-goals utility theory, this model is validated with the goals of navigability and economic benefits to indicate its reasonableness.

根据船舶安全管理决策的复杂性，运用多目标效用理论，构建了船舶安全管理决策的多目标信息效用模型，并以船舶适航性和经济效益为目标，对所建立的模型进行验证，表明其科学性和合理性。

A basic model of active magnetic regenerator was described, and the model was solved according to Lach theory adopting Mikusinski operational calculus method.

介绍了活性蓄冷器的基本模型，并对该模型采用Lach理论以Mikusinski运算积分的方法进行求解，得到了活性蓄冷器温度分布的半解析解。

Markov chain of stochastic process theory was introduced into the reflection mathematic model by considering the fact of total reflectance when light propagate to optically thinner medium from denser medium. The reflectance mathematic model of halftone image coated with different reflectance ink layer was established and discussed.

将随机过程论中的马尔可夫链理论引入到印刷品的反射－透射数学模型中，考虑到光在由光密介质进入光疏介质中传播时会发生全反射现象的事实，讨论并建立了不同折射率油膜层叠加的半色调图像光谱反射率数学模型。

When these coefficients are quadratic functions of the porosity, specific constituent orthogonal weighting coefficients are derived from these orthogonal conditions along with a discussion about how to extend the applicable range of the constituent orthogonal weighting coefficients in the orthogonal coordinates. Based on the combination of the theory of critical porosity and the constituent model, it presents a specific example of the constituent model that includes two transforming points. The reasonability of above-mentioned theories is shown by comparison of theoretical calculations and measured data on effective elastic moduli of clean sandstone or sandstone analogs saturated with pure water.

再次，结合弹性模量组分关系方程与正交基函数理论，推导组分加权系数的正交条件；基于正交条件，提出组分加权系数为孔隙度二次多项式时正交组分加权系数的构造方法以及正交组分加权系数适用范围的拓展方法；结合临界孔隙度理论，提出一个基于两个状态分界点的组分模型实例；比较组分模型的计算结果与前人关于砂岩弹性模量的实验结果，证明了组分孔隙介质模型理论的合理性。

According to the nature of Nanchuan city and the outturn and component of garbage there,the article predicts the outturn of the Landfill-Gas,applying the quality balance theory gas producing model of IPCC and the index model these two kinds of methods,and analyzes the advantages and disadvantages of the two predicting ways.

根据南川市的城市性质、垃圾产量与组成，运用IPCC质量平衡理论产气模型、指数模型两种方法预测了填埋气体的产生量，并分析了两种预测方法的优缺点。

The first step of simulation method is to establish the one-dimension parabolic partial differential advection diffusion equation that was used to describe the mass transportation model of air-pollution distribution as a block program model of the controllable plant. Then, applying the Fuzzy logic theory to operate tunnel jet-fans and control the tunnel wind quantity and adjust the wind average velocity would not let the air-pollution concentration over the standard safety value too much.

模拟方式首先将常被用以表示隧道内空气污染物质传理论模式之一维向平流扩散抛物线型偏微分方程式建构成一组可控制对象的方块程式模拟模型，再运用模糊逻辑理论模拟控制喷流式通风机之运转风量来调节隧道内平均风速以控制隧道内空气污染物浓度不至於高过标准安全值太多。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。