Both the ratio of friction velocity to free stream wind velocity and the thickness of airflow are subject to the sidewall effect, showing the increase trend with the decreasing aspect ratios.
随着风洞宽高比的减小，断面内中垂线上的气流摩阻速度与自由流速的比值以及受风洞边壁影响的气流厚度均增大。
The falling object, after traveling a certain distance through the air reaches a final speed, or "terminal velocity," because the object's friction with the air slows the fall.
物体在下落一定距离后由于空气阻力都会达到一个终极速度。
Experiments are made on locomotion force, velocity, locomotion ability on surfaces with different friction coefficients, and pose of the head cabin.
对机器人的牵引力、运动速度、在不同摩擦系数介质表面上的运动能力、头舱姿态进行了试验。
Can start the flow of contacts and dynamic friction resistance is to minimize the friction resistance, it can save energy, easy to get a higher velocity.
由于流动接触可使起动磨擦阻力及动磨擦阻力为极小，因此可以节省能源，容易得到较高运动速度。
Effects of eccentricity and rotation on the secondary flow and maximal axial velocity were analyzed, and the average friction factors and the wall friction distributions were also presented.
分析了偏心距和旋转对于二次流以及轴向速度分布的影响，同时给出了平均摩擦系数和壁面摩擦力的分布。
However, the friction coefficient between Ni and APS increased with sliding velocity increasing and reduced with load increasing.
而镍与APS间的摩擦系数随滑动速度的增大而增大，随载荷的增大而减小。
This nonlinear change in friction force over a small change in velocity results in uncomfortable feeling when people hitchhike hydraulic lift.
该摩擦力的非线性改变使速度产生变化，导致人们在搭乘液压电梯时产生不舒适感。
In addition, the decline of the temperature, the raise of the drawing velocity, the raise of the friction coefficient all could lead to the increase of the maximum stroke force.
另外，拉深温度的降低，冲压速度的增加，摩擦系数的增大都会使拉深时的最大冲程力增大。
Returnability is affected mainly by automobile velocity, torsional stiffness of steering system and caster angle and relatively little by viscous friction coefficient of steering system.
汽车车速、转向系统扭转刚度和主销后倾角对回正性能的影响较大，而转向系统的粘性摩擦系数对回正性能的影响相对较小。
The falling object, after traveling a certain distance through the air reaches a final speed, or "terminal velocity, " because the object's friction with the air slows the fall.
物体在下落一定距离后由于空气阻力都会达到一个终极速度。
Because of tidal friction and aggrandizement of the earth's volume, the earth's rotation angular velocity slows down.
随着潮汐摩擦力和地球体积的增大，地球自转角速度变慢。
It is found that the friction coefficient increases with the increase of sliding velocity, and there is critical velocity.
试验发现，摩擦系数随滑动速度的增加而增加，存在临界滑动速度。
The results show that the maximum temperature of the die has a nearly linear increase with the increase of drawing velocity or the increase of friction coefficient.
结果表明，模具最高温度随拉拔速度的增加和摩擦系数的增加都是近似线性的增加；
The distribution of slip displacement, slip velocity and friction force on the strike slip fault were obtained by numerical simulation.
通过数值计算得到了平移断层上滑移位移、速度及摩擦力的分布规律。
Calculation formula of velocity distribution, boundary layer thickness, friction force and loss of water head are given out, in accordance with the result from theory analysis of similitude solution.
对于速度边界层提出了相似性解的解析结果，给出了速度分布、边界层厚度、摩擦阻力和水头损失的解析计算表达式。
The variation of local friction coefficient is similar to velocity and local minimum value occurred in reverse flow area.
摩擦阻力的变化趋势与速度类似，在产生逆向流处出现局部极小值。
The result shows that the impact velocity of initial yield is very small for the soil, and the cohesion has an obvious influence on it while the internal friction Angle does relatively small.
研究结果表明：土体初始屈服冲击速度非常小，其中黏聚力对其有较大影响，而内摩擦角对其影响相对较小。
Based on the tire magic formula model, the dynamic variation process of the tire optimal slip ratio and the maximum friction coefficient on the road with the vehicle velocity is researched.
基于轮胎的魔术公式模型，研究了轮胎在路面的最佳滑移率和最大摩擦系数随汽车速度的动态变化过程。
The friction force of PGA porous scaffolds between DMEM is increases with the increase of the flow velocity.
聚羟基乙酸PGA管状支架的摩擦力随流速的增加而增加。
With the increase of the translation velocity of the pin, the flow of the material in friction stir welding becomes faster but the equivalent plastic strain decreases.
随着搅拌头平移速度的增加，垂直于焊缝方向上的截面上，等效塑性应变减小，但是材料的流动速度会随之增加。
The data collecting accuracy directly relates to the properties of high velocity friction between wire rope and liner.
试验台测试数据采集的准确度直接关系到钢丝绳与衬垫高速摩擦学性能。
The friction term is assumed to be proportional to the flow velocity with a phase difference.
粘性假设正比于流体速度，相位存在差异。
This concept includes: friction which primarily determines the reduction in the horizontal component of post-impact ball velocity;
擦力主要确认地面与网球表面接触时，地面对网球水平方向运行速度的影响性能；
Between each pocket there is a metal stick to make frame firm and strengthened, and avoid the breaking because of friction under the high air velocity.
每个滤袋间一金属条固定，增加强度，并防止滤袋于高风速时，因风切之摩擦力而破裂。
Between each pocket there is a metal stick to make frame firm and strengthened, and avoid the breaking because of friction under the high air velocity.
每个滤袋间一金属条固定，增加强度，并防止滤袋于高风速时，因风切之摩擦力而破裂。
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