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。
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。
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。
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。
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。
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。
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。
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。
One other law of friction should be noted.
摩擦力的另一个定律也应被注意。
Oh and don't forget a castor (something low friction that drags).
哦对了不要忘了你还需要一个小脚轮(必须是摩擦力小的)。
These attributes include the density of the object and the friction.
这些属性包括物体的密度和摩擦力。
They have rubber synthetics that greatly enhance one's friction on the rock.
它们是由橡胶制成的，能够增强在岩石上的摩擦力。
I'll give you the Angle and I want you to calculate that friction coefficient.
我会读出角度，你们帮我计算摩擦系数。
The friction will adjust itself so that there is equilibrium if nothing is going.
摩擦力会调整自身大小，使系统保持平衡。
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。
Right? There is no friction, there are no nonconservative forces, so this has got to work.
对吗？没有摩擦力，没有非保守力，所以这个式子成立。
The obedience of matter is limited by friction; is there no limit to the obedience of the soul?
物质的服从是被磨擦所限制的；难道灵魂的服从没有一个限度？
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