查询词典 variation method

Firstly, the three-dimension boundary question and its corresponding variation question concerning the point-source electrical field on a 3-D structure are presented. Secondly, the finite element method is used to solve the variational equation. The study area is divided into many tetrahedral elements. Then, we interpolate with a tri-linear function in each element. So, the variational equation is converted into a linear equation system. Finally, taking into account saving of time, we make use of symmetric successive overrelaxation preconditioned conjugate gradient algorithm to solve large linear system, and obtain the potential value of each node, resulting in the calculation of the apparent resistivity values on the ground surface.

首先给出了三维构造中点源电场的边值问题以及相应的变分问题；然后利用有限单元法求解变分问题，采用四面体单元对研究区域进行剖分，在单元中进行三线性函数插值，将变分方程化为线性代数方程组；最后，考虑到节约计算时间，利用对称超松弛预条件共轭梯度迭代算法求解大型线性方程组，得到了各节点的电位值，进而计算出地表的视电阻率。

This article mainly focuses on the rule of variation of vertical seismic ground field and the theory of multi-support response spectrum. The seismic response of Beijing AMECO hangar located at Beijing International Airport and cover sail of palaestra located in Harbin Institute of Technology are calculated by using multi-support response spectrum method.

本文围绕这一课题重点研究了竖向地震动场的空间变化规律以及多点输入反应谱法计算理论，并用所提出的方法对首都机场四机位维修机库（网架结构，简称AMECO）和哈尔滨工业大学体育场罩篷进行了计算分析。

Methods Using the routine method of paraffin wax embed,the morphologic variation were observed by microscope.

采用常规石蜡包埋法，在光镜下进行形态学观察。

With the nearest interpolation algorithm, the results could be acquired at any location, any time within research areas after eliminating periodic variation and boundary interception error. This method could be applied in the marine environment field.

该方法在高维空间中使用最邻近插值算法，消除了周期性变化以及边界截断误差的影响，实现了对研究区域任意时间，任意地点的插值，在海洋环境领域有着一定的应用前景。

Variation of relief and its reoccurrence were analyzed with 1∶10 000 DEM by harmonics analysis method and periodogram.

结果表明，利用谐波分析和周期图分析均可得到侵蚀沟的分布周期。

By using Antunano"s hypothesis of property selection process and Boers"s theory of parameter of variation to analyze the influencing factors of metaphorical force, the thesis provides a persuadable explaining theory and an able analyzing method to describe working mechanism of metaphor.

针对现代隐喻理论对汉语方位隐喻解释的不足，论文通过对汉语方位概念隐喻拓展的具体分析，提出隐喻力概念，运用Antuano特征选择理论和Boers变化参数理论分析了影响隐喻力大小的因素，从而为准确描述隐喻工作的内部机制，得出一种更为有说服力的解释理论和切实可行的分析方法。

Based on wave analysis method, the characteristics of vibration wave propagation in typical hull structure were analyzed in consideration of wave type conversion and impedance variation in non-homogeneous structure, and the formula of sound transmission loss during incidence of plane bending wave was deduced.

以波动理论为基础，根据不均质结构中波型转换、阻抗特性，系统地分析了典型船舶结构中振动波的传递特性，推导并给出了平面弯曲波入射时的隔声量公式。

The test results verify the feasibility and reliability of the measurement method,and indicate a positive voltage dependence of stress variation in the rubber stress cone of a high voltage cable terminal.

研究表明，该实验方案是可行的，数据采集是可靠的；在运行状态下，橡胶应力锥应力的变化和电压有关，电压越高应力锥应力变化越大。

In 22 positive cases with ST variation of ECG, 77.3% was presented in Ⅱ,Ⅲ, avF or in V4-6 leads. HUTT is an important diagnostic method for patients with circulation symptoms who have proved no serious cardiovascular and cerebral diseases. These patients may be vasovagal syncope.

在严格排除心、脑器质性疾患后，应重视以胸闷、胸痛或心悸等循环系统症状为主要表现患者的直立倾斜试验检查，这类患者极有可能为血管迷走性晕厥。

In order to investigate the effect of IFN-γon the expression of TNF-αin the hypothala- mus-pituitary-ovary axisof RU486-induced aborted SD rats, RU486 was used to establish the abortion model, then the aborted rats were administrated with different doses of IFN-γintraperitoneal injection, the method of immunohistochemical ultrasensitive SP was us- ed to study the variation of positive TNF-αcells in hypothalamus, pituitary, ovary and uterus in normal pregnant group A, aborted model group B and three different doses of IFN-γgroup C,D,E. The main goal of this research was to study whether the low dose of IFN-γcould have a protective function to pregnancy and the mechanism of its function so as to provide morph- ologic basis for the scientific using of IFN-γin the process of animal abortion control.

为探讨IFN-γ对流产大鼠下丘脑-垂体-卵巢轴(hypothalamus-pituitary- ovary-axis，HPOA )TNF-α表达的影响，本试验用米非司酮(RU486)建立SD大鼠流产模型，通过腹腔注射不同剂量IFN-γ，采用超敏感免疫组织化学SP法(链霉素抗生物素—过氧化物酶法)，观察了孕13天(d13)SD大鼠正常妊娠A组、流产模型B组、不同剂量IFN-γC、D、E组下丘脑、垂体、卵巢、子宫TNF-α的表达变化，探讨低剂量IFN-γ对妊娠是否有保护作用及其作用机制，期望能为在妊娠过程中如何科学应用IFN-γ防止动物流产提供形态学依据。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。