油层间所产生的运动阻力称为粘性摩擦力。
The resistance of motion between these oil layers is called viscous friction.
通过试验和经过理论的定量分析，获得了各种情况的抓取阻力矩和抓取运动阻力的规律。
Having taken test and theoretical quantitative analysis, various rules of grasping resistance torque and grasping resistance have been obtained.
《原则》第二卷更进一步地阐述第一卷所表达的概念，但是，收进了关于运动阻力的概念。
The second book of the "Principles" developed the ideas of the first book but included some idea of resistance offered to motion.
在火炮后坐系统设计中，设计人员需要后坐体的运动阻力曲线来分析评价后坐系统的性能。
In the design of the recoil system, the designer need the recoil resistance curve to evaluate the performance of the recoil system.
利用力平衡原理建立了料栓平衡方程序，并结合试验数据得出了预测栓流运动阻力损失公式。
An equation for calculating the pressure drop in slug flow was achieved, which is based on the experimental data and the principle of force equilibrium.
粘性是液体流层问相对运动而产生的摩擦力或阻力。油层间所产生的运动阻力称为粘性摩擦力。
Viscous friction is the fiction, or resistance to relative motion, between adjacent layers of liquid. The resistance of motion between these oil layers is called viscous friction.
将计算的总功率需求量与测量的电功率需求量比较，通过所述比较确定带式设备的单位运动阻力。
The calculated overall power requirement is compared to the measured electric power requirement, and from the comparison a specific resistance to movement is determined for the belt web system.
笔者将在此基础上．推导出履带式拖拉机的车辙大小的理论公式及其沿疏松土地行走时的运动阻力系数。
Based on the achievements obtained. the theoretic formula that determine the rut size of the caterpillar tractor and the friction drag coefficient of motion was deduced.
此外，还讨论了作为准流体的微径玻璃珠分选原理，提出可通过运动阻力和平面撞击反射原理相结合筛分得到圆形微径玻璃珠。
Besides this paper discusses the sorting principle of micro diameter glass bead and brings forward sorting roundness with motion resistance and knocked-on reflection principle.
轻的物体需要较少的阻力改变运动以及用较少的时间去开始运动。
Light objects have much less resistance to change of movement and thus require much less time to start moving.
在形成该星云团的碰撞过程中，大多数恒星彼此分离并且快速向前运动，几乎未受任何阻力。
In the collision that formed it, the stars mostly missed each other and went speeding ahead, relatively unimpeded.
之所以这样是因为对运动的阻力基本上源于滚动零件的变形，而不是滑动现象。
This is so because the resistance to motion is essentially due to the deformation of the rolling elements and, hence, is not a sliding phenomenon.
在低雷诺数条件下，对于纯俯仰运动，随着翼型厚度的减小，平均阻力系数也变小。
For pure pitching motion, the results show that average drag coefficient decreases as airfoil thickness is reduced.
在发射的最初阶段会产生一个阻力，使得炮弹可以保持水平飞行，很快阻力就消失了，自然力使得它向下运动。
Well there is this initial impedance from explosion, sure the cannon ball can keep going horizontally but as soon that impedance goes it store its natural motion which is downward.
作用于空中的阻力阻碍飞机向前运动。
除了运动专项练习，作者还介绍了弹性阻力的应用，应用于功能性专项训练的训练球、平衡垫、平衡板。
In addition to sport-specific drills, the authors describe the use of elastic resistance, exercise balls, balance pads, and balance boards for functional sport-specific exercises.
没有足够克服阻力的力，静止的物体决不会运动。
Without force sufficient to overcome the resistance, bodies at rest will never move.
经过一些时间的自由降落后，落体运动得很快，以至空气拽力(阻力)与落体的重量相等，于是就没有加速度了。
After some time of uninterrupted fall, the body is moving so rapidly that the drag of the air is as great as the weight of the body, so that there is no acceleration.
基于经典轨道要素偏差法分析了相对运动特性和大气阻力对相对运动的影响。
By using the classical orbit element differences method, the periodic characteristics of relative motion and the influence of atmospheric drag on relative motion were analyzed.
岩浆会朝着阻力最小的方向运动，也就是向北，因此会冲向现在加勒比或是中美洲的所有火山下方。
It will move in the direction of least resistance, which will be toward the north, and thus it will rush under all volcanoes currently in the Caribbean or in Central America.
年龄较大更有经验的游泳运动员将会把他的全身收紧以减少阻力并增加水感。
An older more experienced swimmer will shave his entire body to reduce resistance and heighten sensation in the water.
根据试验结果和建立的运动方程，获得阻力系数与圆管形状的关系，并计算了圆管所受到的拖曳力。
Based on the test results and movement equation established, the relationship between drag coefficient and tubular shape is obtained and the drag force imposed on pipe is calculated.
结果表明，当圆球在入口处运动时会遭受到较无穷圆管内为大的阻力。
The results indicate that a sphere near the entrance which has a uniform entrance velocity profile will suffer larger drag than that in an infinite tube.
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。
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.
我的流线型更好。因为我需要更多的关注这个新的运动，对于增加或者减少的阻力我更加敏感。
I streamlined better. Because I had to concentrate more on this new movement, I was more acutely aware of little things that increased or decreased water resistance.
在这里阻力是试图使运动的物体停下来或者改变其方向。
The resistance here is to try and stop something in motion and change it's direction or stop it's motion altogether.
油脂会对运动产生一些阻力。
这是身体，不可能一自由落体运动通过的路径最阻力。
It is physically impossible for a falling body to pass through the path of most resistance.
旋转减震器利用流体阻力原理，减小运动部件的速度，使运动更加顺上、柔和。
Torque dampers utilize the principle of fluid resistance to reduce the speed of moving parts and create a smooth and soft movement.
旋转减震器利用流体阻力原理，减小运动部件的速度，使运动更加顺上、柔和。
Torque dampers utilize the principle of fluid resistance to reduce the speed of moving parts and create a smooth and soft movement.
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