[填空题]
The Moon orbits the Earth such that the same side al w;g7-:i2 zvyykns y*iways faces the Earth. Degufrd) ad.3,vtermine the ratio of the Moon’s spin angular momentum (about its own axis) to its orbid uv3g,.fda)r tal angular momentum. (In the latter case, treat the Moon as a particle orbiting the Earth.) $\times10^{ -6}$