Keeping dynamic equilibrium of friction sheet internal temperature and working environmental temperature was required to ensure it work normally.

摩擦片正常工作的条件之一是其内部温度与工作环境温度差保持动态平衡。

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Wear failure refers to the relative sliding friction between the surfaces causes the surface of the metal continue to wear their work arising from the failure.

磨损失效系指表面之间的相对滑动摩擦导致其工作表面金属不断磨损而产生的失效。

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And the friction coefficient of the rub has a good effect on the absorber effect of the system too. A large friction coefficient can make the system to work more steadily.

碰摩摩擦系数对系统的减振同样有很好的效果，较大的摩擦系数能够使系统更平稳地工作。

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"My own readings or misreadings of historical material, that kind of falsification is what creates friction or energy in the work, " she says.

WSJ: Ellen Gallagher, the Global Art Star | WSJ. Magazine May 2013

Another common type of massage, so-called deep tissue, tends to be more targeted to problem muscles and includes techniques such as acupressure, trigger-point work (which focuses on little knots of muscle) and "deep transverse friction" where the therapist moves back and forth over muscle fibers to break up scar tissue.

WSJ: Don't Call It Pampering: Massage Wants to Be Medicine

Many foreigners who were parachuted into the company at its launch by Groupon (most of whom were from Germany) are no longer with the company after a lot of friction with the JV partners from Tencent about how to make the venture work in China.

FORBES: Groupon's Foray Into China Sounds Like a Disaster