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。

《牛津词典》

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。

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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。

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And we have not had the kinds of friction that's been seen in the past.

VOA: standard.2009.12.12

That means the force you're applying is cancelled by another force, which has got to be the force of friction.

意味着你施加在物体上的力被另一个力抵消了,这个力就是摩擦力

耶鲁公开课 - 基础物理课程节选

So force of friction is yet another force.

摩擦力就是另外一种力

耶鲁公开课 - 基础物理课程节选

Companies that empower viewers to accomplish this with a minimum of friction will emerge as winners.

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Signs of friction between Citi and Wachovia popped up earlier this week, though without much notice.

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Despite those benefits, Americans are more likely to be familiar with the sources of friction.

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