[填空题]
The Moon orbits the Earth such that the same side always faces ej+ i*;p0nw) 3 jyout mk0fg8ethe Ejc9h wkwx+a 26 lwc2+barth. Determine the ratio of the Moon’s spin angular momentum (about its own axis) to its orbital angular momentum. (In the lattew9ljk cxw+ 2ha6+ 2cbwr case, treat the Moon as a particle orbiting the Earth.) $\times10^{ -6}$