How far you are away from the nucleus in terms of a radius, they don't depend at all on those two angles, theta they're independent of theta phi and they're independent of phi.

只和离核子的距离，也就是半径有关，它们和,另外两个角度无关，它们不决定于,也不决定于。

麻省理工公开课 - 化学原理课程节选

"The park administrators have allowed development on Phi Phi Don to continue unchecked, " he writes.

CNN: POSTCARDS FROM THE BEACH

Phi Phi Don is more like Khao San by the Sea than parkland.

CNN: POSTCARDS FROM THE BEACH

Even a blind ecologist could score a bullseye on Phi Phi Don.

CNN: POSTCARDS FROM THE BEACH