查询词典 equivalent relation

On the basis of equivalent penetrate theory , the relation of fracture permeability and asperity .spacing is derived.

根据平行板模型研究了裂缝的流动特征，由等效渗流阻力可以得到裂缝渗透率和裂缝开度、间距的关系。

Chapter one: Provide the simple introduction to basic conceptions and properties used in the article about MTL-algebra; prove the set of all the filters form a complete distribution lattice in MTL-algebra; Discussion some property characteristics of Boolean filter, at the same time introduce the conceptions of positive implicative filter and obstinate filter, receive some properties of them, discuss the relation between the important filters and their equivalent condition.

第一章：对文章中用到的关于MTL-代数的基本概念和性质给出简单的介绍，证明了MTL代数中的全体滤子之集构成一个完备的分配格；讨论了布尔滤子的一些性质特征，同时引入和固执滤子的概念，得到它们的一些性质，探讨了几类重要滤子之间的关系。

By applying the definition of coset , the author first defines that ρ is one of the equivalent relations in G, then gives the pro of that ρ is a congruence relation.

由陪集的定义解释问题，首先确定了ρ是G中的一个等价关系，然后给予了ρ是同余关系的几种证明。

Firstly, this paper investigated roundly the basic theory of the ambient vibration method, analyzed systematically the main methods of ambient vibration identification, and discussed their advantages and disadvantages. Then we established the finite element model of structural dynamics and test model and analyzed their mutual relation, improved MUSIC method and correlation function method in the harmonic identification, and gave the subspace method and correlation function method based on continuous model, which is multi-harmonic retrieve technique. And then, this paper also puts forward least-squares method to estimate directly structural physical and modal parameters; this approach replaced the derivative operator in the continuous time model with an equivalent approximation, and estimated the physical parameters of structures by the least-squares method. And then, we discussed the approximation methods of derivative and their convergence. Finally, this paper researched the modal parameters of a frame structure by the simulation and test. The results demonstrated that subspace method, correlation function method and the least-squares method are effective and stable respectively.

全面地研究环境振动识别方法的基本理论，系统地分析环境振动识别方法的主要方法，讨论它们的优点和不足；建立结(来源：6666AB44C论文网www.abclunwen.com)构动力学的有限元模型和试验模型，分析有限元模型与试验模型之间的相互关系；改进谐波识别中的MUSIC识别方法和相关函数识别方法，给出大型结构模态识别的连续型的子空间分解识别方法和相关函数识别方法，这个方法是多元谐波识别方法；提出直接识别结构的物理参数和模态参数的最小二乘方法，这个方法利用导数的近似值代替导数值，并运用最小二乘方法识别结构的物理参数，讨论导数近似值的选择方法，分析算法的收敛性；通过仿真计算和模型实验，研究高层框架结构的模态参数识别，验证子空间分解识别方法、相关函数识别方法和最小二乘识别方法的有效性，算法的稳定性；从理论和试验两个方面分析和研究噪声对识别精度的影响，影响识别精度的因素，以及部分模态成分的模态参数不能够被识别的原因。

A construction in which a noun or noun phrase is placed with another as an explanatory equivalent, both having the same syntactic relation to the other elements in the sentence; for example, Copley and the painter in The painter Copley was born in Boston.

同位，并列，并置一名词或一名词词组作为解释性成分与另一个放在一起，这两个成分与句子中的其他成分有相同的关系；如科普利与painter在画家科普利出生于波士顿句子中

Following the dual principle of the circuit theories,the dual network of mutual inductance network ,the concept of mutual capacitance,and the dual relation of mutual capacitance and mutual indutance are analysed and substantiated,and the decoupling equivalent circuit of mutual capacitance is discussed as well.

从电路理论对偶原理出发，分析论证了互感网络的对偶网路、互电容的概念及互电容与互电感的对偶关系，并探讨了互电容的去耦等效电路。

After profound systematic theoretical and testing reasearch of metal rubber mechanical property,manufacturing technology,macro-micro constitutive relation and metal rubber spring coupling technique, we present deep intercross wiring manufacturing technology,establish infinitesimal spring constitutive model,non-symmetry elastic hysteresis constitutive model,dissipation factor testing method based on equivalent stress function and key technique methods of metal rubber elastic damping fabrication.

我们针对金属橡胶力学性能、制造工艺、宏观、微观本构关系及金属橡胶制造弹性联轴器关键技术开展了系统深入的理论与实验研究，提出了基于深度交叉钩联编织技术的制造工艺方法、建立了微元弹簧组合的微观本构关系、非对称弹性变形滞迟泛涵宏观本构关系、基于等效应力函数概念的损耗因子测试方法和金属橡胶制造弹性阻尼元件关键技术。

The relation between the load equivalent capacitance and the load voltage amplitude ...

根据外加电压在负载上产生的平均电流推导出负载等效电容与外加电压幅值的关系，外加电压的幅值或频率越高，放电过程的功耗越大。

By the study to the load decay at different temperature, according to the theory of time-temperature equivalent and WLF equation, the relation of load decay at different temperature was found.

而通过对不同温度下O形圈载荷衰减规律的实验研究，根据聚合物的时间—温度等效原理，利用WLF方程，建立了实验所用O形圈高温下的载荷衰减规律与常温载荷衰减规律之间的联系方程。

A massspring-damp model is proposed through constructing the mapping relation between equivalent parameters and finger seal＇s structural parameters.

通过建立当量模型中各等效参数和实际指尖密封结构参数之间的映射关系，构建了指尖密封迟滞性能优化的质量一弹簧一阻尼当量模型。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。