摩擦

The journal rubs against the bearing surface.

轴颈在轴承面上。

There is some friction among the family members.

家庭成员间有些。

He has had a few brushes with them.

他曾与他们有点。

He rubbed his limbs vigorously to get the blood circulating.

他用力四肢让血液循环开来。

The friction force is therefore called a nonconservative or a dissipative force.

因此，力称为非保守力或耗散力。

When Joan returned to work, the friction between them increased.

琼回来工作后, 他们之间的加剧了。

That door rubs on the floor.

那扇门与地板。

This insect makes its strange noise by rubbing its back legs together.

这只昆虫它的两条后腿发奇怪的声音。

Friction gradually caused the sliding box to slow down and stop.

力使向下滑的箱子慢下来后停住。

I can’t bear the sound of chalk scraping on a blackboard.

我受不了粉笔在黑板上发的刺耳声音。

In designing a machine it is necessary to reduce friction as much as possible.

在设计机器, 必须尽可能减低。

The continuing activities, has the friction with clothes to affect flesh's eupnea, becomes dry.

经常活动，与衣服产生而影响肌肤的正常呼吸，变得干燥。

Semimetal Brake Materialsconsist of reinforcing fiber,friction element,lubricste elementand polymer.

半金属制动材料是由增强纤维、增塑剂、组元、润滑组元和树脂组成的。

The worn surface morphology of ADZ ceramic was analyzed with a scanning electron microscope.

与去离子水相比,在小牛血清润滑条件下ADZ陶瓷的因数和磨损率降低。

Matches are lighted by friction.

火柴由而生火。

Friction brake prevents overspin.

制动防止overspin 。

Oil can reduce friction.

润滑油能减小力。

Abstract: Triboluminescence is the emission of light caused by applicationof mechanical energy to a solid.

发光物质在材料科学领域倍受人们关注。

And microscopic analysis indicates that some microsize mineral particles embedded friction surface, which make friction surface strengthened and recoverable.

同，微观分析表明，微小的圣矿物粒子大量嵌入表面，可对表面起到强化和修复的作用。

Here, free electrons rub off the con ductor and create a charge imbalance that causes the current flow.

这，引起自由电子脱离导体，产生电荷不平衡，从而产生电流。