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。
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。
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。
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。
One other law of friction should be noted.
摩擦力的另一个定律也应被注意。
In the absence of friction belted machinery would not be used.
没有摩擦力，皮带传动的机器就无法使用。
The coefficient of friction can be set to any nonnegative value.
可以设置摩擦系数成任何非负值。
An automobile could not move itself without the aid of friction.
没有摩擦力的作用，汽车就不能前行。
How much is the coefficient of friction between the tire and ground?
轮胎与地面间的摩擦系数是多少呢？
The coefficient of friction for that same tire in mud would be almost zero.
同样的轮胎在泥泞的地面上，其摩擦系数可能几乎为零。
This revolution has been achieved with only a modicum of friction (see article).
这一变革取得成功所受阻碍极少（见有关文章）。
Polyurethane polymer containing no additives has a high coefficient of friction.
不含添加剂的聚氨酯聚合物有极高的摩擦系数。
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。
Self-lubricating rod bushing with a low coefficient of friction for smooth actuation.
自润滑连杆衬套的低摩擦系数平稳驱动。
On one level, the difference between dancing on a floor and skating on ice is the lack of friction.
从某种层面上说，在地板上和在冰面上跳舞的区别就是摩擦力减小。
There is always a little bit of friction with the track, for one thing, and also, of course, with air.
和轨道,总会有一些摩擦力，当然和空气也是。
In the absence of friction, belts would not be capable of conveying power from one machine to another.
没有摩擦力，皮带就不能将动力从一台机器传送到另一台机器。
Yet the seas, and what Japan does with them, are also the main sources of friction with the outside world.
不过，日本于外部世界的分歧的主要来源也恰好是海洋以及日本对海洋的所作所为。
It is both essential and desirable to have a certain defined degree of friction in these electronic gas pedal assemblies.
对于这种电子油门踏板装配来说，摩擦力必须能够达到要求。
Winter, tire easily aging, lower coefficient of friction with the road surface, the situation appears unstable grip.
冬季来临，轮胎容易老化，与路面的摩擦系数降低，出现抓地不稳的状况。
This surface has extreme hardness (60 RC. ), excellent wear and corrosion resistance, and low coefficient of friction.
这表面有极高的硬度（60局。），耐磨性和耐腐蚀性，低摩擦系数。
Nails hold in wood, and screws hold in either wood or metal by reason of friction, without which they would be useless.
钉子能钉住木头，螺丝能拧住木头或金属，都是由于有摩擦力，如果没有摩擦力，它们就毫无用处。
The coefficient of friction for static contact is higher than for dynamic contact, so static contact provides better traction.
此时因为静摩擦系数比动摩擦系数高，所以静摩擦的附着力较大。
This study showed that an increase in the coefficient of friction between the ball and the foot caused the ball to acquire more spin.
这项研究表明，脚和球之间的摩擦系数的增加导致了球获得更多的角动能。
The key to understanding this phenomenon lies not in magnetism nor in any sort of mystical ability but instead in the physics of friction.
理解这种现象的主要方面既不是在磁性也不是在神秘力量而是摩檫力的物理性质。
Low friction-the coefficient of friction between the chip and tool should be low. This would allow for lower wear rates and better chip flow.
低摩擦系数—切屑与刀具间的摩擦系数应当较低。这会使磨损率较小及切屑流动更好。
Revolving join is maddening that plastic of nanometer technique coat, in order to reduce the coefficient of friction for increased efficiency.
转动副采用纳米塑料薄层，减小摩擦系数，提高效率。
This revolution has been achieved with only a modicum of friction (see article). Men have, by and large, welcomed women’s invasion of the workplace.
这个变革的取得并没有碰到太大的阻力，大多数的男人还是很欢迎女性加入到他们的工作之中的，然而，在这之中即使最积极的改变也是不完善和不尽人意的，这中特殊的进步伴随着两种情况：第一，在公司的高层中，女性依然只是绝少数。
The amount of friction is designed to be some degree less than the return spring, so that when the pedal is released, it returns to the closed position.
设计时要确保总摩擦力小于折回弹簧的弹力，这样当松开踏板时，弹簧才会弹回，油门才会闭合。
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。
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