If you spin a top, that we know that the top will not last very long because of friction.
如果你转一个陀螺，你会发现因为摩擦力，陀螺不会永远旋转。
The efficiency of a real system is always less than 1 because of friction between moving parts.
由于运动部件之间存在摩擦力，所以实际系统的效率永远小于1。
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。
If the reason the objects are sticking to the "magnetic" person is because of magnetism instead of simple skin friction, there's no reason they should only stick to bare skin.
如果东西粘在“磁铁”人身上是因为磁性而不是摩檫力，那么它们只能粘在光秃的皮肤上就毫无道理了。
Chromium Oxide Specific gravity 5.2, Moh hardness 2.5 Enhances friction, but not popular because of high price in most parts of the world.
氧化铬5.2比重2.5莫氏硬度，增强摩擦力，因为高价格因而在世界的大多数地方不流行的。
While fluids flow through a pipe, dynamics loses because of the surface friction of pipe.
流体流经管道时，由于管道表面的摩擦力而产生力头损失。
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。
On approaching the shore, waves break because of the same friction effect.
海浪近岸时会受到同一的摩擦力效应而分解。
Because of the friction between gloves and skin, it is difficult to get on and get off general latex gloves.
普通乳胶手套与皮肤之间的摩擦力大，使得手套的穿戴和脱下较为困难。
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.
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。
Because the inner space of a hollow track is small, a driving wheel is arranged outside the hollow track in the prior art, and a dolly is driven to move by friction force generated by spring force.
由于空腹轨道内空间小，驱动轮安装在空腹轨道外部，靠弹簧力产生的摩擦力带动小车运行。
Sometimes when you don't feel like doing anything it's because there is some source of friction that is impeding your way forward.
有时你感觉自己什么也不想干是因为存在一些阻碍你前进的阻力。
Because of the line contact or even point contact between zigzag slot and pin, its friction is different and needs to be studied.
由于惯性筒上的曲折槽与销间的为线接触甚至点接触，因此针对此处较为特殊的摩擦系数进行研究。
In daily life, the most best friend grits too, Perhaps we will separate because of the friction.
在日常生活中，就算最要好的朋友也会有磨擦，我们也许会因这些磨擦而分开。
Because the structure is adopted, the polishing of the both sides of the blade reduces the friction between the blade and paper when the paper is shredded, and the paper shredding effect is favorable.
由于采用了所述的结构，刀片两面磨光减少了碎纸时刀片和纸张之间的摩擦力，碎纸效果更好。
Because of the complexity of turbulent flow, it is a tough issue to determine its friction factor.
鉴于紊流运动的复杂性，其沿程阻力系数确定起来较为困难。
Because of their ability to reduce friction and wear, they are usually used as the material for making the worm wheel in a worm gear set.
由于具备减摩性和耐磨性的性能，它们通常用来制作涡轮减速器中的涡轮。
Movement occurs along the plane of a fault, not perpendicular to it. If faults opened up, no earthquake would occur because there would be no friction to lock them together.
即使断层裂开，也不会发生地震，因为那样的话，就不再有摩擦力了（摩擦力会使相接触的断层应力不断积累而最终诱发地震）。
Thee efficiency of the machine is higher because there is less friction.
由于摩擦力较小，这台机器的效率更高了。
The ceramic pushing plate has high reliability, long service life, and energy-saving effect because of the low surface friction coefficient and small rotational resistance.
陶瓷推力盘具有可靠性高使用寿命命长的特点，由于其表面摩擦系数低，转动阻力小，因而还具有节能效果。
The bones have very low friction compared to modern metal blades because of the residual fat on the bones.
同现代冰鞋上的冰刀比起来，由于残留着油脂，马骨的摩擦力更小些。
It is termed backward because of the opposite direction of the flow of the metal to that of ram movement. Thus, the billet in the container remains stationary and hence no friction.
这个过程被称作反向挤压就是因为金属的流动方向与推杆的移动方向相反。
It is termed backward because of the opposite direction of the flow of the metal to that of ram movement. Thus, the billet in the container remains stationary and hence no friction.
这个过程被称作反向挤压就是因为金属的流动方向与推杆的移动方向相反。
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