[填空题]
The Moon orbits the Earth such that; oa8hso,3z)cze v ;rj the same side always f8s tt hjqt.g0o2(ssrkw1i +o6aces the Earth. Determine the ratio of the Moon’s spin angular momentum (about its jks 2s.tg +t08q th61io s(wroown axis) to its orbital angular momentum. (In the latter case, treat the Moon as a particle orbiting the Earth.) $\times10^{ -6}$