[填空题]
Eclipses happen on Earth v6q.vzg.cb-)e cefd) rr5)(gv(r*.oej p s yod9 t.vwq/y6rg because of an amazing coincidence. Calculate, using the information in 9ego rvy5j/rgqwvor*s.(6 (ptr ).ydside the Front Cover, the angular diameters (in radians) of the Sun and the Moon, as seen on Earth. Sun = $rad$ Moon = $rad$
Post time 2025-2-18 20:00:22
