摩擦

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

这只昆虫摩擦它的两条后腿发出一种奇怪的声音.

He heard tires squeal as the car braked to avoid a collision.

为避免相撞而刹车时，他听到了轮胎与地面刺耳的摩擦声。

He has had a few brushes with them.

他曾与他们有点摩擦.

In everyday life you may sometimes have a brush with other people.

在日常生活中,你有时会与别人有点小摩擦.

The journal rubs against the bearing surface.

轴颈在轴承面上摩擦.

The conflict between the two countries finally caused a war.

两国间的摩擦终于导致了一场战争.

the coefficient of friction

摩擦系数

He rubbed his limbs vigorously to get the blood circulating.

他用力摩擦四肢让血液循环开来.

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

我受不了粉笔在黑板上摩擦时发出的刺耳声音.

Oil is put in machinery to reduce the friction.

把油涂到机器上减少摩擦.

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

琼回来工作后, 他们之间的摩擦加剧了.

Friction acts on moving bodies and brings them to a stop.

摩擦力作用于运动着的物体,并使其停止.

The only sound is that of knives and forks scraping against china.

只听见刀叉摩擦瓷器的刺耳声。

The grind of heavy machines could get on their nerves.

重型机器发出的刺耳的摩擦声会让他们心烦意乱。

That door rubs on the floor.

那扇门与地板摩擦.