Many of these appear to be fairly uniform, so by the virial theorem the total kinetic energy should be half the total gravitational binding energy of the galaxies.

多数这些好象是很统一，因此靠维里法则总动能应该是星系总引力聚合能的一半。

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So, what we can do is figure out what we would expect the binding energy of that electron to be in the case of this total shielding.

完全屏蔽的案例中,期望的电子结合,能再次记住,结合能物理上来说是。

麻省理工公开课 - 化学原理课程节选

And we know that n describes the total energy, that total binding energy of the electron, so the total energy is going to be equal to potential energy plus kinetic energy.

我们知道，n是描述总能量的，电子总的结合能，所以总能量，等于,势能加动能。

麻省理工公开课 - 化学原理课程节选

Its strategy is determined by the UK's legally binding EU target of achieving 15% of total energy from renewable sources by 2020.

BBC: Call for clarity on wind turbines