The slightest motion of a patient in bed creates friction between skin and sheets and results in loss of cells from the skin's outermost layer.
卧床病人最轻微的活动就会在皮肤和床单之间产生摩擦力，结果就会引起皮肤最外层脱落。
The general low level of friction on ice allows a skater to glide along the surface smoothly without friction stopping the motion as soon as it's begun.
冰面上摩擦力通常较低，这使得滑冰选手一俟启动，就能不受摩擦力牵绊，顺畅滑翔冰面。
If there were no friction, an object in (motion) would never come to a rest.
如果没有摩擦力，那么一个在运动的物体永远也不会停下来。
By friction is meant a force opposing motion.
摩擦力指的是阻碍运动的一种力。
This force, which we call friction, always opposes motion.
这种总是阻碍运动的力我们称之为摩擦力。
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.
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。
An adaptive fuzzy integral type sliding mode control method based on GA was proposed to control single-axis motion control system with nonlinear dynamic friction.
提出一种基于GA的自适应模糊积分型滑模控制策略，并将其用于具有非线性动态摩擦力的单轴运动控制系统中。
The perturbation method is used to analyse the motion of the rigid sphere under the action of the nonlinear sliding friction.
用摄动法分析刚球在非线性滑动摩擦力作用下的运动规律。
The numerical solution of the equation describing the motion of the floating piston pin is obtained by bringing in the conception of friction force coefficient under slide-roll condition.
引入滚滑状况下的摩擦力系数，从而求得活塞销运动方程的数值解。
The resistance of motion between these oil layers is called viscous friction.
油层间所产生的运动阻力称为粘性摩擦力。
It was indicated that enhancing the friction between the material and the rotary kiln wall is easy to carry out the rolling motion from the aspect of force moment.
本文从力矩的角度出发，得出了要实现物料的滚落状态，可以提高物料与窑壁间的摩擦系数，并提出了具体方法。
Starting with the friction underwent, we discuss the regularity of the variety of the max swing angle, the simple way to work out the friction doing work and the equation of motion etc.
从分析其受的摩擦力出发，讨论了最大摆角变化的规律；计算摩擦力作功的简便方法；运动方程及振动经历的时间问题。
If the flood wave was not deformed in motion, there was no internal friction loss, which is called kinematic wave.
洪水波在运动中不变形，则没有内摩阻损失，即所谓运动波。
But the theory about the flow regime of the wave boundary layer, the wave friction factor, the bed shear stress and the initiation of sediment motion has not developed very well.
而且波浪是海岸地区一个非常重要的海洋水动力因素，波浪作用下底部边界层的流态、底摩阻系数、床面剪应力和泥沙起动的理论还不成熟。
We study the friction of the motion of a particle on the rough incline.
本文用实验和理论模拟的方法研究了颗粒沿粗糙斜面运动中的问题。
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.
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。
Obtain the vibration response curve of worm and friction discs by simulation calculation, the simulation results accord with the actual device motion rule.
考虑冲击外力、传动间隙、碟形弹簧刚度、阻尼及预压力等因素，仿真得出蜗杆和摩擦片的振动响应曲线，与部件实际运动规律相吻合。
This paper deals with the mechanism of the noise results from friction of motion. It also investigates primary influential factors and suggests a way to eliminate them.
本文论述滑动噪声的机理和影响滑动噪声的主要因素，并提出减少滑动噪声的途径。
The existing friction models need to be improved for friction estimation in high speed linear motion system.
针对高速直线运动控制系统的位移测量需要，设计了一种基于磁阻原理的非接触式位移测量系统。
The machine also has its own heat sources: motors, friction from machine motion, and the cutting action of the tool on the work piece.
热力因素：来自内部和外部的热量是床身变形的主要原因。
The machine also has its own heat sources: motors, friction from machine motion, and the cutting action of the tool on the work piece.
热力因素：来自内部和外部的热量是床身变形的主要原因。
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