流体运动的

At first, basing on the boundary value problem concerned with fluid-composite structure interaction and characteristic of acoustic wave radiation, a generalized Hamilton variational principle is derived, and the equations of motion based on the finite element method is also derived.

首先，从复合结构与流体相互作用问题的有关混合边值问题出发，针对声波辐射特点，推导了一种广义形式的Hamilton原理及有限元形式的运动方程。

Control valves or fluid drive mechanism is driven to rely on pieces of lifting hoist, sliding, rotating or turning motion put to the size of change in flow area to achieve.

阀门的控制功能是依靠驱动机构或流体驱使启闭件升降、滑移、旋摆或回转运动以改变流道面积的大小来实现的。

In this paper, the simulation of the process of particle growth integrated the basic theories of fluid and particle dynamics.

本文综合了流体动力学和颗粒动力学的基本理论，对火焰中二氧化钛颗粒的生成，运动，长大等过程进行了详细的数值模拟。

With the development of science and technology, study on the nature of fluids and the law of motion has been made intensively.

随着科学技术的进步，人们对流体的性质及运动规律的研究不断深入。

Starting from the quantum hydrodynamic equation of electron and photon kinetic equation, photon Landau damping is discussed.

从电子的量子流体动力学方程和动理学描述下的光子运动方程出发，研究量子效应对光子朗道阻尼的修正。

The form of a variety of valve cage shown in the diagram Quick Opening Linear Equal percentage Closure components: the valve may be moving parts, it is placed in fluid channel, is used to adjust the flow through the valve.

各种各样的阀笼形式示于下图快开线性等百分比截流元件：阀门的可运动部件，它置于流体通道中，用来调节通过阀门的流量。

It suggests that the vortex migration and crystalling phase vortex nucleation of microscale ore-forming fluid will be the another important way in which some matter in system of metallogenetic kinetics moves and exists.

这暗示，微尺度成矿流体的涡旋运移与晶相涡旋成核可能是地球成矿动力学体系中某些物质运动和存在的又一种重要的形式。

In this paper, a total flow differential model of sediment density current was developped on the basis of analysizing its characteristics and simplifying its moving properties.

本文分析了异重流体的特点，对异重流的运动作了一些假设和简化，推导出了以总流为控制体的异重流微分模型。

The behaviour of the viscous fluid flo w with a free surface is expressed by the unsteady Navier-Stokes equation.For nu merical integration in time domain the velocity correction fractional step metho d is used.

在任意拉格朗日欧拉坐标系下，用非定常不可压的N avier-Stokes 方程来描述粘性带自由面流体的运动，在时间的数值积分中采用了速度修正分步法。

Based on AC electric field,the authors established a 2D model of the symmetrical electrodes and a homotactic circuit,deduced the microfluidic velocity expression,and analyzed microparticle velocities based on their dielectrophoresis,buoyancy and gravity...

以交流电场机制为基础，建立了交流电渗对称电极的二维模型及等效电路，推导了交流电渗作用下的微流体流动速度公式，对比研究了介电泳、重力以及浮力作用下微纳粒子的运动速度。

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。