摩擦力作用于运动着的物体，并使其停止。
如果没有起粘着作用的摩擦力，几乎只有很小的可能性让你只靠腰和一条腿倒挂在钢管上。
Which, without that sticky friction, might be a (small) possibility when you're hanging to a strippers pole upside down attached only by your waist and one flailing leg.
为什么摩擦力不起作用？
指纹有一个作用——它们可以为手指抓东西提供摩擦力。
Fingerprints serve a function - they provide traction for the fingers to grasp things.
摩擦力在达到静力，平衡中起了很大作用，情况就是这样。
So the friction plays an essential role for us to get static equilibrium, and that is often the case.
但摩擦力(滞后作用)可以保证更平稳地完成油门设定，并缓解在持续挤压弹簧过程中产生的张力。
But the friction (hysteresis) makes it easier to maintain a steady throttle setting, and relieves strain from pushing against the spring continuously.
这就是著名的靠，摩擦力平衡的例子，现在我想讨论一个，可以在重力作用下，自由摆动的悬挂物体。
So you saw in a striking example of where friction helped us to balance, and now I want to discuss an object that is hanging and that can freely swing due to gravity.
水钉的作用，使土钉体外表面与土体界面接触粘结力与摩擦阻力显著降低。
By action of water to nail, Bond between soil and nail a was obviously reduced.
因此对摩擦学设计具有实际意义上的指导作用。
It has guidance function with real significance for design of tribology.
离合器的摩擦力和制动器的摩擦力起一样的作用，不同的是压在地面上的重压力变成了离合器中弹簧压在离合器盘上的压力。
The friction force in the clutch works just like the blocks in the frication section of brake, except that the spring presses on the clutch plate instead of weight pressing the block into the ground.
了解和掌握含稀土材料的摩擦学特性及稀土元素在其中的作用机制具有重要的意义。
It is important to understand the tribological characteristics of rare earth materials and the role of rare earth element.
剪切力，压力和摩擦力也都可能有破坏骨突起异常区域皮肤屏障的作用。
Shearing, pressure, and frictional forces also all play a role in the breakdown of the cutaneous barrier, since they are concentrated over the abnormal bony prominences.
没有摩擦力的作用，汽车就不能前行。
An automobile could not move itself without the aid of friction.
卸载时摩擦力的作用方向会发生改变，并抑制裂隙面之间滑移变形的恢复，使岩样内部产生残余变形。
In unloading process the direction of friction will convert to prevent restoration of shear deformation between the fissures, which results in the residual deformation in the specimen.
一旦驾驶员松开离合器踏板，弹簧力就迅速作用在离合器上，摩擦力就随之增加。
As the driver lets loose the clutch pedal, spring pressure increase on the clutch parts. Friction between the parts also increases.
本文重点阐述了判定摩擦力方向的方法，对摩擦力的作用及摩擦力的成因进行了比较深入的探讨。
This paper mainly discusses the methods of judging the direction of friction force, and the effect and cause of friction force is studied systematically.
运动物体在斜面之间的楔紧力和轨道给予的摩擦力的共同作用下迅即制动。
The movement object fast stops by the actions of the wedged forces between the bevel faces and the friction forces given by the orbits.
分析了顶梳除具有梳理分离纤维丛尾端的作用外，同时形成附加摩擦力界，加强对分离纤维丛中浮游纤维的控制，以减少有效纤维的损伤。
Besides the functions of carding and separating fiber tail end, top comb can also form added friction fields that strengthen the control of float fibers to decrease fiber damage effectively.
通过应用模糊设计理论和可靠性设计理论，建立了摩擦力作用下直齿圆柱齿轮传动的模糊可靠性优化设计的数学模型，并对其进行优化处理。
In this paper, the fuzzy reliable optimum design's mathematical model of the spur gear under the action of the sliding friction is set up by using the fuzzy and reliable theory.
计算表明作用于叶片上的粘性摩擦阻力矩的大小具有与驱动力矩相同的数量级。
The results of calculation indicate that the blade frictional torques have a magnitude equal to that of the driving torques.
应用有限元方法对一种全新的可应用于板料的等通道角挤压(ECAP)方法中摩擦力的作用进行了有限元模拟。
Finite element method was carry out to investigated the effects of friction in a novel equal channel angular pressing (ECAP) based procedure which can handles the strip metal ECAP procedure.
当接触面被完全剪断后，模型中的剪切应力出现了一定程度的下降，此后的剪应力在摩擦力的作用下基本保持不变。
However, as the interface was fully damaged, shear stress would decrease to a certain degree, and the residual shear stress nearly kept a constant value which equal to the friction force.
焊接过程中的温度、材料热物性、摩擦力和顶锻压力的相互作用使焊接过程高度非线性。
The inertia friction welding process is a non-linear process because of the interaction between temperature field and material properties as well as friction force and thrust force.
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 perturbation method is used to analyse the motion of the rigid sphere under the action of the nonlinear sliding friction.
离合器主动件、从动件上没有弹簧作用力，因此主动件和从动件之间也没有摩擦力。
There is no spring pressure on the clutch assembly parts. So there is no friction between the driving members and driven members.
滑动摩擦隔震是结构抵御地震作用的一种重要的被动控制措施，具有广阔的工程应用前景。
Sliding isolation is an important passive control measure to defend against earthquake action, thus it possesses very broad prospect in engineering practice.
测量结果表明，在极低速状态下，仪表齿轮齿面间的摩擦系数几乎与齿面间的作用力无关，但随齿面相对滑动速度的增加而线性增加。
Results show that the frictional factor almost has nothing to do with applied forces, but increases linearly with the sliding speed between the tooth faces.
离合器摩擦片的压紧是由钢球在离心力作用下沿斜面滚道向外滚动而引起的。
The clamping of the friction disk is caused by the outwardly rolling of the steel ball along the slop rolling track under eccentric force.
在无相对运动的情况下，也可以有摩擦力的作用。
Frictional forces may also act when there is no relative motion.
在完成中心动力作用下的摩擦系数计算公式后，继续用计算法确定周动力作用下的滚动摩擦系数。
The formula for calculating the rolling friction factor was developed and established. Based on the analysis of central force action, the formula for circumferential force action is developed.
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