area of region

• 区域面积

area of region的用法和样例：

例句

1. The area pictured is one-thousandth of Kepler's full field of view, and shows hundreds of stars at the very edge of the constellation Cygnus.
   本图区域面积约为整个视图的千分之一，显示出天鹅座相当边缘区域的数百颗恒星。