查询词典 finiteness principle

The principle of the main circuit, choice of the control parameters, choice of the control algorithm and the principle of point-by-point integration method are first introduced in this paper.

论文首先介绍了逆变主电路的原理、控制参量的选择、控制算法的选择，以及焊接电流、电压的逐点积分检测原理。

After an analysis of the enlightenment and guidance of correspondence principle on the physics thought and methodology in the course of proposing quantum theory and the establishment of quantum mechanics, this article discusses the ideological connotation and puts forward the belief that correspondence principle reflects the fact that when substance can be neglected within certain limits, the physics model with universality is tending to become similar to that with particularity.

分析了在量子论的提出和量子力学的建立过程中，对应原理在物理思想和方法论上的启发和指导作用；讨论了对应原理的思想内涵，认为对应原理反映了当物质的某些属性在极限情况下可以忽略时，普遍性的物理模型趋同于特殊性的物理模型，普遍性的理论可以过渡到特殊性的理论，在结论上趋同于特殊性的理论。

It is suggested that one of the majordifferences between the principle of correspondence between crime,responsibility and penalty and the principle of correspondence betweencrime and penalty is that the former takes into consideraton thecorrespondence between penalty and the harms of the crime in society,andthe correspondence between penalty and the insecurity of the criminal.

罪责刑相适应的原则与传统罪刑相适应的最大区别就是它既注意刑罚与犯罪行为的社会危害性相适应，同时也注意刑罚与犯罪人的人身危险性相适应，因此罪责刑相适应原则在本质上呼唤法官的刑事自由裁量权。

The soul is the principle of life, energy, and perfection; the body is the principle of decay, potentiality, and imperfection.

灵魂，是生命的原则，能源，和完善；身体的原则，衰变，潜力和缺陷。

The new criterion of minimum principle of absolute harness for flotation reagents put forth The new criterion of minimum principle of absolute hardness for flotation reagents has been studied.

进行了银矿物的浮选研究天然的Ag〓S、Ag及合成的银浸染闪锌矿、AgCl、Ag〓SO〓、Ag〓O的单矿物浮选实验表明，这些矿物在pH≤5.5都具有很好的可浮性。

This paper discusses maths base of principle of superposition from direction of maths physics and summarizes its application in physics, and points out the suitable range of the principle of superposition.

本文从数学物理的角度讨论了迭加原理的数学基础，概述了迭加原理在物理学中的应用，并指出迭加原理的适用范围。

So in this paper,a new simplified method of block diagram is put forward by using superposition principle and combing with equivalent transform and formula method,according to the linearity and superposition principle of the research object in classic control theory.

笔者提出了一种使用叠加原理，结合方框图等效变换和公式法来进行框图化简的方法。

Basing on the variation principle of solid-fluid coupled problem,on the situation of the tank being full filled,the essential method and principle have been found by using the numerical approximation of finite element method.

在罐车满载的情况下，根据固液耦合问题的广义变分原理，使用有限元的近似数值计算方法，找到解决满载罐车液固耦合振动问题的基本方法和原理，建立铁路罐车的固液耦合问题的动力学控制方程，并通过算例验证液体对罐车耦合振动的影响，得到在工程上所需要的分析结果。

3 Computation of virtual work principle and structural displacement : understand the content about the virtual work principle of deformable body and its application; skillfully master the calculation method of statically determinate structure displacement by loads; master the calculation method statically determinate structure displacement by temperature variation and support movement; know Reciprocal theorems .

虚功原理和结构位移计算：理解变形体虚功原理的内容及其应用，熟练掌握在荷载作用下静定结构位移的计算方法，掌握静定结构在温度变化，支座移动影响下位移的计算方法，了解互等定理。

In this topic, the dynamic analysis methods for piezoelectric vibrator are studied systematically based on the theoretical model, FEM numerical experimentation and FEM governing equation for given compound-mode vibrator, and some valuable conclusions are obtained. The main work accomplished is summarized as follows: 1.Elaborate the main modeling methods for piezoelectric vibrator and the significance and necessity to study the dynamic characteristics of piezoelectric vibrator which emphasize the urgency of this paper. 2.Take the bending deformation induced by piezoelectric ceramic as example, the energy transfer mechanism of electric energy to mechanical energy are analyzed; the motion and force transfer mechanism are analyzed for the longitudinal-bending vibrator. 3.Based on mode assumption and Hamilton principle, the coupling model of piezoelectric vibrator of linear USM is built; moreover, the equivalent circuit model is obtained and a coupling equation represents the relation between electric parameters and mechanical parameters is derived which provides foundation to match the vibrator and driving circuit. 4.Combine the constitutive equation of piezoelectric ceramic with elastic-dynamical equation, geometric equation in force field and the Maxwell equation in electric field and the corresponding boundary condition equation, the FEM control equation for piezoelectric vibrator of USM to solve dynamic electro-mechanical coupling field is established by employing the principle of virtual displacement. The equation lays the foundation to study the non-linear constitutive equation of piezoelectric ceramic driven by high-power. 5.Define the dynamic indexes of characteristic of vibrator and carry out variable parameters simulation by calculating the model parameters and the electric characteristics of vibrator are simulated according to the equivalent circuit model. By numerical experimentation, the working mode of vibration of vibrator and the shock excitation results of the working frequency band which provides the mode frequency to realize bimodal are analyzed. Detailed calculation of the electro-mechanical coupling field parameters is made by programming the FEM control equation.

本课题从理论模型、有限元数值试验、有限元控制模型等方面以复合振动模式振子为例对超声电机压电振子的动力学特性及其分析方法进行了全面系统地研究，得出了许多有价值的结论，主要概括如下： 1、阐述了目前针对超声电机压电振子的主要建模方法，对压电振子动态特性的研究意义和必要性进行了论述，突出了本文研究内容的迫切性； 2、以压电陶瓷诱发弹性体发生弯曲变形为例，分析了压电陶瓷通过诱发应变来实现机电能量转换的机理；对基于纵弯模式的压电振子的运动及动力传递机理进行了分析； 3、基于模态假定，利用分析动力学的Hamilton原理，建立了面向直线超声电机压电振子的机电耦合动力学模型，并据此建立了压电振子的等效电路模型，导出了电参量与动力学特性参量的耦合方程，为压电振子与驱动电路的匹配提供了依据； 4、从压电陶瓷的本构方程出发，综合力场的弹性动力学方程、几何方程、电场的麦克斯韦方程以及相应的边界条件方程，采用虚位移原理，建立了压电振子动态问题机电耦合场求解的有限元控制方程，为研究其大功率驱动下的非线性本构模型奠定了基础； 5、界定压电振子的动力学特性指标，对压电振子的机电耦合动力学模型参数进行计算及变参数仿真；依据等效电路模型，对压电振子的电学特性进行了仿真分析；通过有限元数值实验，对压电振子工作模态附近的模态振型及工作频率附近的频段进行了激振效果分析，找出了实现模态简并的激振频率；利用有限元控制方程，通过编程计算，对压电振子的力电耦合场参数进行了详细计算，得出了一些有价值的结论。

Connectors are lines that can be anchored to particular places, called glue points , on the graphic object.

连接符，可固定在图形对象的特定的地方的线条。

Another way of putting it, too many agents have a say in each other's work, and bureaucratic rigor mortis sets in.

另一种表达是，太多的作用物在彼此的工作里都有话语权，官僚的僵尸开始抬头。