That means the sum of potential energy and kinetic energy.

总功指的是势能,和动能的总和。

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Results showed that both the potential energy and kinetic energy are smaller for the hillslope with grass coverage, and the variation is smoother than that without grass coverage.

结果表明，有草断面比无草断面下的径流动能、势能普遍偏小，变化幅度也较平缓；

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If I look at this result — the sum of gravitational potential energy and kinetic energy is conserved - for gravitational force — then it is immediately obvious where we put the zero of kinetic energy.

如果看这个结果-，重力势能与动能之和，在重力作用下，是守恒的-，马上，很明显的发现，动能为0的地方。

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The total energy of the system, which we are going to get from postulate number four, which says the energy of the electron, which is the energy of the system, is the sum of the kinetic and the potential energy.

这个系统的总能量，也就是我们将从第四个假设中算出的能量，也就是电子运动产生的能量，也就是整个系统的能量，是动能和位能的总和。

麻省理工公开课 - 固态化学导论课程节选

It means that we better get away from these deterministic models where we have a little electron here with its potential energy and its kinetic energy.

它的意思是我们最好远离,这些确定性模型,那里有一个小电子,它具有势能和动能。

麻省理工公开课 - 固态化学导论课程节选

So if we say that l is just talking about our kinetic energy part, our rotational kinetic energy, and we know that electrons have potential energy, then it makes sense that l, in fact, can never go higher than n.

如果我们说，l仅仅是,描述动能项，我们的旋转动能，我们知道，电子有势能，所以可以理解，l不能比n高。

麻省理工公开课 - 化学原理课程节选

They include changes to the aerodynamics, the re-introduction of slick, untreaded tyres after 11 years with grooved rubber and the potential use of a kinetic energy recovery system (Kers), which stores energy that would have been dissipated during braking and reapplies it while the car is accelerating.

BBC: Red Bull expect wins from new car