That means the sum of potential energy and kinetic energy.
总功指的是势能,和动能的总和。
That was the potential energy of the spring that was converted into kinetic energy.
这是弹簧储存的能量，它转化为动能。
The sum of kinetic energy and potential energy doesn't change.
动能和势能，总和没有改变。
So this is the kinetic energy and this is the potential energy.
因此这是动能，这是势能。
A chart shows the kinetic, potential, and thermal energy for each spring.
图表显示每条弹簧的动力、势和热能。
There exist many sources of energy both potential and kinetic.
存在着许多势能和动能的能源。
In many example of mechanical motion, there is an interchange between kinetic and potential energies.
在很多机械运动的实例中，有一种是动能和势能之间的相互转化。
There exist many sources of energy both potential and kinetic.
势能和动能都有许多来源。
The two major forms of energy are generally classified as potential energy or kinetic energy.
能的两种主要形式通常可分类为势能或动能。
The two major forms of energy are generally classified as potential energy or kinetic energy.
能的两种主要形式通常可分类为势能或动能。
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