And so the energy is zero because the electron is no longer bound. It is free.

所以这个系统能量为0，因为，电子不再受束缚了，它自由了。

youdao

And how about potential energy? It is not bound.

那么什么是势能，答案不是一定的。

youdao

According to their estimates, this should require no more energy than a typical Earth-bound power station can provide.

据他们估计，使用大约地球上现有的所有发电站就可为其提供能量。

youdao

And so the energy is zero because the electron is no longer bound. It is free.

所以这个系统能量为0，因为,电子不再受束缚了，它自由了。

麻省理工公开课 - 固态化学导论课程节选

So, if we want to go from that stable state to that less stable state, we need to put in a certain amount of energy to our system, that difference between the free electron and the electron bound to the metal.

所以，如果我们想使电子,从稳态到达不够稳定的状态，我们需要引入一定数量的,能量到系统中，即自由电子和束缚于金属的,电子的能量差。

麻省理工公开课 - 化学原理课程节选

And how about potential energy? It is not bound.

那么什么是势能，答案不是一定的。

麻省理工公开课 - 固态化学导论课程节选

In doing so, they are bound to raise energy prices.

ECONOMIST: Climate change

Not so in our time, as the dogmatics perpetuate the myths that keep us bound to these greedy energy cartels.

FORBES: Climate Scientists Deepening Skepticism of Democracy

It has become even more crucial as a potential transit route for Europe-bound natural gas from energy-rich Azerbaijan and Central Asia, as well as from Iraq (and eventually Iran).

ECONOMIST: Turkish foreign policy