So, the total work that we can get out must be zero, out of the whole sum of them.

因此，我们可以从这两个热机,得到的总功，一定是零。

麻省理工公开课 - 热力学与动力学课程节选

What we are going to say is that the wavefunction for molecular orbitals is going to be an additive sum of the wavefunctions of atomic orbitals.

我想说的是,分子轨道的波函数,就是多个原子轨道,波函数的线性叠加。

麻省理工公开课 - 固态化学导论课程节选

To sum up, ingredients of humor is there has to be a target who experiences some harm.

总的来说，幽默的要素,就是要有一个承受一定伤害的目标。

耶鲁公开课 - 心理学导论课程节选

If the product is just the sum or multiple of a sum of the inputs, there wouldn't be much of a point working in a team at all.

如果总收益只是投入的和或者倍数,那这样合作也没什么意思了

耶鲁公开课 - 博弈论课程节选

I should be able delta Hs to take the sum of all of those delta Hs.

因此，我们能够,把这些。

麻省理工公开课 - 固态化学导论课程节选

I am going to say if that electron is to stay in its orbit, that is to say it doesn't flee the atom, it doesn't collapse under the nucleus then the sum of the forces on the electron must be zero No net force. And so that will be the sum of a dynamic force plus an electrostatic.

如果电子会保持在它的轨道上运行,既不脱离原子的话，它就不会由于原子核对它的吸引力而被瓦解掉,电子所受的合力一定为零,由于没有合力,所以电子所受力为动态力和静电力的总和。

麻省理工公开课 - 固态化学导论课程节选