[填空题]
The Moon orbits the )mw7w.q:kj;/n oh wv1p 9gwubEarth such that the same side al 8 ylai8endv3.ways faces the Earth. Determine the ratio of the Moon’s spin angular momentum (about its own axis) to its orbital angular momentum. (In the lav .nlye8ia 3d8tter case, treat the Moon as a particle orbiting the Earth.) $\times10^{ -6}$