angular size meaning in English
角大小
Examples
- Since the distance between the moon and the earth is not constant , the angular size of the moon can have a small variation
由于地球和月球的距离并不固定，所以在地球看来，月球的角大小亦会出现变化。 - The angular size , measured in degrees or arc seconds , which is very important in astronomy , is not commonly used in everyday life
我们亦会介绍一个天文学上非常重要，但日常生活很少接触到的概念角距和角大小。 - It could happen that the moon is at the right position , but its angular size is too small to cover the whole sun . hence , there will be an
有时，月球虽然处于能造成日食的位置，但由于月球的角大小不足以掩盖整个太阳，便会出现 - During solar eclipse , if the angular size of the moon is larger than that of the sun , the sun will be totally covered , resulted in total solar eclipse
日食solar eclipse时太阳被月球所侵蚀与及月食lunar eclipse时月球被地影所蚕食的意思亦显而易见。 - At arm s length , the angular size of our fists is about 10 , fingers is about 1 and the tip of the thumb to the tip of the little finger of an extended hand is about 20
将手伸直后，拳头的角大小约为10度，手指约为1度，若把手掌张开，由拇指尖至小指尖的角距则约为20度。