查询词典 collocation

Piezoelectric materials ; mode-Ⅲ interface edge crack ; boundary collocation method ; general solution ; stress intensity factor

压电材料；反平面界面裂纹；边界配置法；基本解；应力强度因子

In chapter 2,all kinds of numerical methods of computational fracturemechanics are summarized,the development histories and present situation ofboundary collocation method,boundary integral method,finite difference method,boundary element method and finite element method are expounded,and theapplication of finite element method in fracture mechanics are emphaticallydiscussed.

第二章 总结了计算断裂力学中各种数值方法，论述了边界配位法、边界积分法、有限差分法、边界元法及有限元法的发展历史和现状，并着重讨论了有限元法在断裂力学中的应用。

First, the linear combinations of basic set of solutions to Laplace equation under polar coordinate system are chosen as the approximations for the solution of temperature fields,boundary residual collocation method are applied to calculate the distribution of the temperature fields for single-particle model.

本论文主要完成了两方面的工作，一方面是采用加权残值法和边界元法对不同复合材料模型的2D稳态热传导的温度场进行了求解分析。

Due to the restriction of computational complication and precision,WRM boundary collocation method can only be used to simulate temperature fields of single-particle model,as for the case of some more complicated particle geometry shape it is very hard to obtain sufficient approximation solutions.Thus,BEM is adopted to analyze the thermal conduction problem of composites with particle of arbitrary geometry.

由于受计算复杂程度和计算精度的限制，采用加权残值法只能分析单夹杂问题，且对于更复杂的夹杂形状很难得到良好的近似解，因此接下来采用边界元方法分析了具有任意形状夹杂复合材料的温度场问题。

The boundary contour formulations of evaluatingstresses from the Somigliana stress identity are derived for 2-D problemswith quadratic boundary elements.The boundary contour method basedon the traction boundary integral equation is further discussed.Elasticproblems are first solved using the traction boundary contour method.Amixed collocation of the displacement boundary contour formulation andtraction boundary contour formulation is given.(4)The dual boundarycontour method is developed for the analysis of crack problems.

3建出了Somigliana应力积分式的二维和三维问题的边界轮廓法理论；给立了二维问题由Somigliana应力积分式计算应力的二次形函数的边界轮廓法方程，进而给出了基于面力边界积分方程的边界轮廓法；提出了一种以位移边界轮廓法方程与面力边界轮廓法方程混合配置的方案，首次实现了用两种积分方程相结合来求解弹性力学问题。

Spectral element methods for partial differencial equation is introduced in this study from viewpoint of the collocation approximation of Chebyshev polynomial. Wave Equation and its space discretization are deduced. Two time integral methods, central difference method and implicit Newmark method, are introduced, and their stability and applicability are also discussed in some details. The significance of absorbing boundary conditions in spectral element methods for Aeroacoustics is explained, and Clayton-Engquist-Majda absorbing boundary conditions is emphasized and introduced, then the discrete scheme of this boundary conditions is deduced and applied to spectral element methods for wave equation.

本文从Chebyshev多项式逼近理论出发，详细介绍了谱元方法求解偏微分方程的过程；推导了流体中的声波动方程并在空间上对其进行了谱元离散；详细讨论了两种时间积分方法──中心差分法和Newmark方法，分析了它们的稳定性条件，并从理论上对比了两种方法的优缺点和适用范围；将吸收边界条件推广应用于谱元方法求解气动声学问题中，重点介绍了Clayton-Engquist-Majda吸收边界条件的原理和公式，推导了该吸收边界条件的变分形式，并将其引入波动方程的离散形式中。

The market profit means that the rate of circulating in the medium market which base on the structure of market and reflect the industrial resource collocation by the medium action and the real state of the industrialization of medium by the progress of technology with the realization of industrial economics and the quantity and quality in the price , fee , profit and information goods .

本文由这一定义推论出媒介产业的定义为：媒介产业是在限定条件下(特定环境所构成的产业结构)，通过具体经营行为，将各种投入转化为信息产品，兼顾社会多元化需求，具有社会整合性的以实现利润最大化为目标的专业组织。

A detailed comparison of the use of Appear was made between Chinese Learner Corpus and the native speaker corpus. It reveals the differences in the frequency of the class of word, meaning, collocation and colligation of appear* between the learners' English and the native English speakers' language. Reasons of the misuse and underuse of the word are explored. Some implications of corpus linguistics are given to EFL teaching.

本文对常用词appear在中国学习者英语语料库和英语本族语语料库的使用作对比分析，揭示中国学习者对该词的不同词性、词义、词语搭配和类联结的使用存在着误用、少用现象，分析了影响中国学习者有效习得appear一词的主要原因，突出了语料库对于外语词汇教学的重要意义，以期为英语教学提供一些启示。

In the conventional collocation method, the number of points is equal to the number of unknown parameters.

在通常的配置法中，点数等于未知参数。

The computational technique of the collocation method and the effectiveness of the method to different transport problems are discussed.

本文的工作还有助于探索如水力机械汽蚀的电磁学机理等多相流动的某些复杂机理。

The circulation, consumption and reproduction of the trilogy have not only testified to its historical significance and literariness, but also invested it with new meanings.

该三部曲的流通、消费与再生产不仅验证了其历史意义及文学性，而切还赋予它以新的意义。

If he thought that he could buy me off, he would be wrong.

如果他认为他可以收买我，那他就大错特错了。