[填空题]
Eclipses happen on Earth because of an amazi 5aevoo1,pxk7pq:+k1a yhhu + ng coincidence. Calculate, uv,i ;*4paxsybm+pl k ;sing the information inside th;i ;x p4bp*l y+,mvskae Front Cover, the angular diameters (in radians) of the Sun and the Moon, as seen on Earth. Sun = $rad$ Moon = $rad$