annular
adj. 环形的,有环纹的
例句
See annular eclipse pictures.
详见日环食图片。
WHAT IS AN ANNULAR ECLIPSE?
什么是日环食?
Such events, which only blot out the middle of the Sun, are known as annular eclipses.
像这样,太阳中部被遮盖的天象,就叫做日环食。