结构方程

Although the dispersion of particles with the Stokes numbers far less than or of the same order of 1 are insensitive to the changes of inlet velocity differences, the dispersion of particles with Stokes number much larger than the order of 1 are influenced by the coherent structures under U〓/U〓=α=0, where α=0 means the particles are released into the flow in stationary state.

在目前国内开展三维N-S方程大涡模拟还非常困难的情况下，本文以两相平面湍射流为对象，不采用流动对称性假设，成功地用大涡模拟方法预报了平面湍射流拟序结构的产生、发展及大涡的合并破碎全过程，和F.O。

According to piezoelectric equation and vibration theory of quartz crystal, we studied the elastic wave＇s transmission characteristic in a AT-cut thickness-shear-vibration quartz crystal, and the frequency conditions of which quartz crystal resonator formed stationary wave in electrode district.

根据石英晶体的压电方程和晶体振动理论，研究了AT-切石英晶体厚度切变振动模式下振动频率与结构参数间的关系，以及石英晶体谐振器在电极区形成稳衡驻波的频率条件及电极区外波的传播特性。

A structual model of generating natural gas hydrate is summarized in this paper. It's genesis conditions are calculated by means of the equations of statistical mech-anics and thermodynamics.

本文概述了生成天然气水合物的结构模型，并利用统计力学和热力学方程计算了它的生成条件，以控制热力学参数防止其生成。

Based on the data and materials collected from many years investigation over the sample plots in Daemonorops margaritae plantation in Daqingshan, Guangxi Province, this paper established a model for its stem length distribution by choosing three growth equations and using a method of twice curve fitting to describe the rule of length distribution for mother stem and sucker stem.

对广西大青山黄藤人工林固定样地进行调查和收集资料，选择Logistic、Weibull和Richards 3种理论生长方程，采用两次曲线拟合法分别描述母茎长和萌茎长结构规律，旨在建立黄藤人工林茎长分布模型。

The calculation equations for sliding direction,plane intersection points,area,volume,and safety of key blocks of slope are established by stereographic projection of vector and vector calculation.

利用全空间赤平投影和矢量计算对边坡关键块体滑动方向、结构面交点、面积、体积和安全性建立了计算方程。

The main research of this paper is how to simulate complicated flow by using Navier- Stokes equation.

本文的主要工作是研究如何运用非结构网格对复杂流场进行Navier-Stokes方程计算。

A simple recursion method was presented for solving structure vibration equations.

提出了一种简便的求解结构振动方程的递推方法。

Based on the current Chinese wind load codes, the motion equations of a structure with active multiple tuned mass dampers are established.

基于我国现行的风荷载规范，建立了在风荷载作用下结构-主动多重调谐质量阻尼器系统的动力方程。

The model structure and governing equations of a rigorous complex physics-based hydrologic-response/erosion model, Integrated Hydrology Model, are introduced.

介绍了一个复杂的严格基于物理概念的水文／侵蚀数值模型InHM的模型结构和控制方程。

The region is cut apart by structure grid; governing equations are solved by NUMECA software.

采用结构网格对计算区域进行剖分，应用NUMECA软件对控制方程进行求解。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。