The rattle of the engine was very loud.

发动机嘎嘎声很大。

A rotor from the engine makes the wheels of the car turn.

发动机轮子使车轮转动。

A silencer quietens the noise of the engine.

消声器把发动机噪音消弭了。

This new jet engine is superbly engineered.

这个新喷气式发动机设计实属上乘。

Quickly he located the trouble in the engine and set it right.

他很快找出并排除了发动机故。

The noise was audible even above the roar of the engines.

有发动机轰鸣声，这个噪音还是能够听到。

Lubrification degradation of low sulfur diesel oil causes oil pump abrasion of engine.

由于低硫低芳柴油润滑性能下降,会导致发动机油泵磨损。

Why do you impute selfish motives to her?

你为什么动机是自私?

The magnets of BLDCM are felted with featheredge of the motor, and then are machining.

摘要无刷直流电动机磁钢需要和薄壁磁轭粘接，并在粘接后还要机械加工。

The ship is driven by large engines.

轮船是由大型发动机驱动。

He is motivated by good intentions.

他动机是善良。

This heavy freighter is driven by two electric motors.

这辆重型运输汽车是由两台电动机驱动。

The police could not find a motive for the murder.

警察不能找到谋杀动机。

To train and supervise trainee test operators on engine testing, boroscope inspection and test cell maintenance.

培训并监督培训生测试操作员对发动机测试，检孔仪检验和试车台维护。

No one really knows what motivated him to do so.

没有人确知他那样做动机。

Their motives for undertaking this study are highly questionable.

他们承担这项研究动机大有问题。

In a slip of the tongue the schemer exposed his true motivation.

阴谋者一时口误暴露了自己动机。

I have to warn you that his motives have lain hidden.

我不得不提醒你他动机还不明。

Only the few men around the president understood his motive.

只有总统身边几个人了解他动机。

It is an obvious truism that people act in accordance with their motives.

人人都按自己动机行事是不言而喻。