angular size meaning in English
角大小
Examples
- As a natural limit for angular resolution, one may take the angular size of the central diffraction disk .
我们可以取中心衍射环的角直径作为角分辨率的一种自然极限。 - The combination of very large radio flux and exceedingly small angular size means that the sources have a fantastic surface brightness .
极大的射电流量同极小的角经集于一身，意味着这些发射源有难以置信的高表面亮度。 - The intervening matter between the source and the observer gravitationally deflects and focuses the light bundle, increasing the apparent angular size of the source .
光源与观测者之间的物质对光束产生引力偏折和聚焦作用，使光源的视角径加大。 - The angular size of the moon viewed from the earth is about 0 . 5
从地球看来，月球的视直径即月面最远两点的角距约为0 . 5度。 - Thus , we can use our hands to measure roughly the angular sizes of various objects
换句话说，我们可以用自己的手作量角器，量度天体的大小或距离。