总功是负的，所以是椭圆轨道。

It is negative; it is an ellipse.

youdao

总功指的是势能,和动能的总和。

That means the sum of potential energy and kinetic energy.

youdao

地球绕太阳，所做的总功是多少呢？

What is the total energy of the Earth around the sun?

youdao

所以这是总功，这是不变的。

And so this is the total energy, and this is now a constant.

youdao

所以这是总功，这是不变的。

And so this is the total energy, and this is now a constant.

youdao