[填空题]
The Moon orbits the Earth s0 fd+2iw6 )4ayugcxi1j1l ylyuch o nnyn2mg).j(e ,h6,piq q4sz that the same side always faces the Earth. Determine the ratio of the Moon’s spin angular momentum (about its own axis)e(2inoy .jqz s,,6hn n4) mgqp to its orbital angular momentum. (In the latter case, treat the Moon as a particle orbiting the Earth.) $\times10^{ -6}$