That it's equal to the chemical potential RTlogp at one bar for an ideal gas plus RT log p.

等于对于理想气体一巴时的,化学势加上。

We have a weight on the piston, and that weight is chosen so that p2 it acts as though p external is equal to p2.

让活塞上放一重物，让它的效果刚好,等同于外压强。

Similarly, if m is equal to either plus 1 or minus 1, py we would in turn call it the p y orbital, or the p x orbital.

类似的，如果m等于+1或，我们可以叫它，或者px轨道。