功的概念极为重要，所以还要进一步加以讨论。

The concept of work is so important that it will bear further discussion.

youdao

介绍了用断裂基功的概念测定纸张断裂韧性的新方法。

The concept of essential work of fracture offers a simple and practical way to measure the fracture toughness of a sheet.

youdao

通过对实例的分析提出了比压实功的概念，并在此基础上建立了能量评价标准。

The concept of compared compaction power is presented, based on which appraisal standard of energy is built.

youdao

So the force that you're pushing down on here is the external pressure times the area.

或者压缩功的概念,在活塞上施加压力。

麻省理工公开课 - 热力学与动力学课程节选

There are many kinds of work. There's electrical work, take the motor, you plug it into the wall, electricity makes the fan go around, that's electrical work. There's magnetic work.

我们复习一下大一,学过的功的概念：,物体在力的作用下，运动了一段距离。

麻省理工公开课 - 热力学与动力学课程节选