The pistons are graphite-coated to reduce friction.
活塞表面涂有石墨以减少摩擦。
Sara sensed that there had been friction between her children.
萨拉感觉到她的孩子们中间出现了摩擦。
Friction between moving parts had caused the engine to overheat.
活动部件的摩擦使发动机过热。
The force of friction slows the spacecraft down as it re-enters the earth's atmosphere.
航天飞机重返地球大气层时因有摩擦力而减慢速度。
This layer of water reduces friction.
这层水减少了摩擦。
Friction between the glacier and bedrock is reduced.
冰川和基岩之间的摩擦减少了。
Maglev doesn't rely on the friction of wheels on track.
磁悬浮不依赖于车轮在轨道上的摩擦力。
Friction ACTS on moving bodies and brings them to a stop.
摩擦力作用于运动着的物体，并使其停止。
That friction sometimes makes it difficult for the two teams to work together.
那种摩擦有时会让两个团队很难一起工作。
Friction marks indicated that they did, indeed, once form part of a necklace or bracelet.
摩擦痕迹显示他们曾经是项链或手镯的一部分。
Through friction, this flexing produces heat in the moon's interior capable of melting ice.
通过摩擦，这种弯曲在月球内部产生了能够融化冰的热量。
The generation gap can result in misunderstandings and cause friction between parents and children.
代沟会导致误解，引起父母和孩子之间的摩擦。
Under normal conditions, rocks composed of clay produce far less friction than do other rock types.
在正常情况下，由粘土组成的岩石产生的摩擦要比其他类型的岩石小得多。
This friction tends to slow the speed of winds, making them far less efficient at dispersing pollutants.
这种摩擦往往会减慢风的速度，使它们吹散污染物的效率大大降低。
Wind movements are also modified in cities because buildings increase the friction on air flowing around them.
风向在城市里也会改变，因为建筑物增加了它们周围流动的空气的摩擦力。
Now, this difference between the testers and the developers can lead to an environment where there is a bit of friction.
现在，测试人员和开发人员之间的这种差异可能会导致出现一些摩擦。
Some geologists wondered whether the absence of friction-generated heat could be explained by the kinds of rock composing the fault.
一些地质学家想知道，是否可以用构成断层的岩石来解释没有摩擦产生的热量。
This felt thing there is just to avoid too much friction from building up with the plastic or to keep it slightly separated from the case.
这种毡制品只是为了消除与塑料产生太多的摩擦力，或者让它与外壳稍微分开。
When not campaigning, soldiers needed to be occupied; otherwise they represented a potentially dangerous source of friction and disloyalty.
不作战时，士兵需要处于忙碌状态；否则他们就会是危险的摩擦及不忠的潜在来源。
This felt thing there is just to avoid too much friction from building up with the plastic or to keep it slightly separated from the case.
这种毡制品只是为了消除与塑料产生太多的摩擦力，或者让它与外壳稍微分开。
If, however, there's so much friction at home that it interferes with your academic work, you might want to consider sharing an apartment with one or more friends.
然而，如果家里有太多摩擦，干扰了你的学业，你可能得考虑和一个或多个朋友合租一套公寓。
Geologists therefore wondered whether the friction between the plates was being reduced by pockets of pressurized water within the fault that push the plates away from each other.
因此，地质学家们想知道，断层内部的加压水袋是否会使板块之间的摩擦力减小，从而使板块彼此远离。
Prior to 1965 geologists assumed that the two giant rock plates meeting at the San Andreas Fault generate heat through friction as they grind past each otherd.
1965年以前，地质学家认为，两个巨大的岩石板块在圣安德烈亚斯断层上相遇，通过摩擦产生热量。
It's the friction that does it.
就是摩擦力。
So the maximum friction goes up.
最大摩擦力变大。
But what has changed is the maximum friction.
改变的是，最大摩擦力。
This has caused friction, the party admits.
该党亦承认，这引起了双方矛盾。
We know in life that friction takes kinetic energy out.
我们知道在生活中，摩擦力抵消动能。
So friction does negative work — it's converted into heat.
所以摩擦力做负功-，转化成热能。
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