[填空题]
Eclipses happen on Earth because of an j8)x m(ri4 1cuty,cbn0)ftldamaz:y. nihx 3bhb/ing coincidence. Calculate, using the information inside the Front C: 3/. hhbbxiynover, the angular diameters (in radians) of the Sun and the Moon, as seen on Earth. Sun = $rad$ Moon = $rad$