平均运动

我们首先评述了根据Reynolds的平均运动方程所建立的混合长度理论。

We begin with the review of the mixture length theories based upon Reynolds ' equations of mean motion .

我们并着重说明Reynolds认识到湍流运动可分作平均运动与涨落运动的重要性。

We also emphasize the importance of Reynolds ' recognition that the turbulent motion of a fluid can be separated into the mean motion and fluctuation .

第五章为测试过程；随着损伤程度的加重，SD大鼠视觉运动的平均运动速度出现渐进性下降的变化。

Optokinetic behavior test shows the average velocity of motion gradually decreases as the injury is aggravated .

其肘部和腕部运动的平均运动完成率很高（TMR患者为96.3%，对照组为100%）。

The average motion completion rate for elbow and wrist movements was high ( 96.3 percent for TMR patients and100 percent for control participants ) .

第三，讨论了运用Reynolds的平均运动方程和根据速度涨落方程求得的速度关联函数的动力学方程来处理具有Reynolds剪应力的普通湍流运动问题。

Thirdly , we discuss the treatment of the general turbulent shear flow by means of Reynolds ' equations of mean motion and the dynamical equations of velocity correlations which are derived from the equations of turbulent velocity fluctuation .

两组大鼠行为学观察：脂多糖组大鼠术后7,14,21,28d的平均运动速度、30min内运动距离较术前呈进行性减少，生理盐水组大鼠运动指标无明显变化。

Praxiology of rats in two groups : The rats in the LPS group moved more slowly in mean speed and 30-minute movement distance at days 7,14,21,28 as compared with before operation .

在推移区内，颗粒的纵向速度沿垂线接近对数分布，平均运动速度为8.2u；

In the bed load layer , the stream-wise particle velocity profile follows the log-law , and the average is 8.2u .

现有基于RWM移动模型的自组织网络路由协议仿真经常会引起一些问题，如平均运动速率衰减、移动节点分布不均匀等，使得路由协议的仿真不准确。

The existing simulation of Ad hoc routing protocols based on RWM often causes subtle problems such as the attenuation of average speed , the non-uniformity of mobile nodes ' distribution , which make it inaccurate to simulate the routing protocols .

地球斜压大气纬圈平均运动特征的振动

The oscillation of certain zonal mean characteristics of motion on a spheric earth

随机寻道装置的平均运动时间

Average Motion Time of Random Access Mechanism

冰舌中段主流线处年平均运动速度为171.4m；

Mean velocity at the middle section of the ablation area is up to 171.4 m / year .

分别于治疗前及治疗3个月后行计算机辅助精液分析，比较每组治疗前后精子密度、前向精子活动率、总活动率、直线运动速率、平均运动速率等精液参数。

The sperm parameters of the patients were analyzed by computer-assisted sperm analysis system before and after treatment .

本文同时给出了挟沙水流时间平均运动方程的准确形式。

The correct form of the equation of mean movement of the inhomogeneous fluid is derived in this paper .

然后利用1972&80年逐候北半球500毫巴高度资料计算出纬圈平均运动动能、涡动动能及两者间的转换率。

500-mb pentad height data from 1972 through 1980 are used for calculating mean zonal kinetic energy , eddy kinetic energy and the rate of their conversion .

卵石运动的间歇性表现为运动距离短，停歇时间长，平均运动速度低。

Gravel motion shows intermittence , i.e. after traveling a short distance , gravel is at rest on the bed for a long time and its velocity is low .

由于离心力与湍流脉动的相互作用，强旋流动中能量由湍流脉动向平均运动的逆向传输得到了加强。

In strongly swirling flow , due to interaction between centrifugal force and turbulent pulsation , adverse transfer of energy from turbulent pulsation to average motion is greatly increased .

在此模式中，雷诺平均运动方程组的闭合，采用了代数化的雷诺应力输运方程和k-ε二方程湍流模式。

In the model , the Reynolds equations of motion are closed with algebraic transport equations for the Reynolds stresses , coupled with the k - ε two equation turbulence model .

建立了基于弱可压缩流基础上的水质大涡模拟数学模型及污染物质扩散系数与平均运动的关系。

A large eddy simulation approach for the water quality based upon the weakly compressible flow is developed , and the relationship between the diffusion coefficients and the average velocity is established .

通过对风波随机界面的分析提出了湍流界面层概念，从而导出了与相平均运动方程相容的界面动力学条件。

A turbulent interfacial layer is assumed at the random boundary between wind and water and the dynamic boundary conditions at the phase averaged interface are derived which are consistent with the phase averaged governing equations .

研究结果表明：1.在所有比赛中，第一局的平均运动时间、比赛密度要高于第二、第三局。

The results of the study indicate that : 1 . During all the games , the excise time and competition density of the first set is superior to that of the second set and third set .

南海西南部海盆七座海山古地磁研究表明，中中新世开始海山向南平均运动了个纬度左右，运4动速率约为。

Study results from paleomagnetics of seven seamounts in the southwestern basin of the South China Sea indicate that since middle Miocene they have moved southward for 4 degrees of latitude , at the average rate of about 2.4 cm / a.

纬圈平均大气运动特征的振动

The oscillation of certain zonal mean characteristics of atmospheric motion

各组大鼠精子密度无明显差异。与对照组相比，治疗组精子活力中的精子平均直线运动速度、曲线运动速度、路径运动速度有明显的提高（P<0.05）。

The parameters of rat sperm VCL , VSL , VAP were improved significantly compared to control group ( P < 0.05 ) .

借助于双流体模型建立了快速流化床内充分发展状态颗粒相与气相平均湍流运动方程组。

By aid of two-fluid model , a set of averaged turbulent motion equations for the fully-developed flow in a fast fluidized bed is developed .

地壳垂直运动不是线性的，有加速、反向和停顿，长期平均垂直运动速率低于各时段的变化；

The vertical crust movement isn 't linear , exists accelerating , reverse and pause , and its average rate for a long time is smaller than that in every phase ;

首先讨论了大量离子系统的初值问题，随后介绍了6个基本概念，估算了地层中离子的平均热运动速度。

First of all , the initial value of vast amount of ion is discussed and six basic concepts are introduced . Then the average thermal kinematic velocity of ion in the stratum is estimated .

以理论严谨、实用有效的偏微分方程方法作为数学工具，针对非线性扩散滤波、平均曲率运动水平集方法、图像分割、图像修复和图像放大的数学建模、数值应用实现技术等内容展开深入研究。

Using the religious and effective partial differential method as the mathematics tool , all of the math modeling , numerical schemes and application on nonlinear diffusion denoising , mean curvature motion , image segmentation , image inpainting and image zooming were researched in this paper .

结果：随训练次数增加，5月龄SD大鼠寻找平台的平均潜伏期和运动路程逐渐减小且趋于平稳；

Results : To increase with the training number of times , the average latent period and the sport distance of the big rats gradually became shorten and steady .

比较了颗粒平均速度、运动轨迹的差异；

Particle average velocities with increasing time and particle trajectories were compared .

日常运动：平均每天剧烈运动30分钟。

Daily exercise : average of30 minutes of vigorous exercise per day .