交流发电机将机械能转化为电能。

An alternator converts mechanical energy into electrical energy.

涡轮机将蒸汽转化为机械能。

The turbine converts steam into mechanical energy.

这台机器可以将电能转换成机械能。

The machine can trans electrical energy into mechanical energy.

汽轮机是一种将蒸汽能转化为机械能的设备。

A steam turbine is a device that converts steam energy into mechanical energy.

他解释了发电机如何将机械能转化为电能。

He explained how the dynamo converts mechanical energy into electrical energy.

发电机把机械能转变成电。

A generator transforms mechanical energy into electricity.

在这两种情况中，都是机械能起的作用。

In both cases, mechanical energy results.

有效地利用化学能, 使其转换成机械能.

Make use of chemical energy effectively, and transform it into mechanical energy.

电能变为机械能是通过电动机实现的。

The change of electrical energy into mechanical energy is done in motors.

所谓电动机就是把电能转变为机械能的机器。

By motor is meant a machine changing electrical energy into mechanical energy.