mean distance
英
美
- distance n.距离；路程；远方vt.与...保持距离；把(对手)甩在后面
- mean v.意思是；打算；导致；意味adj.低劣的；刻薄的；卑鄙的；出色的；吝啬的；平均的；中等的n.平均值；平均数；中间；中庸
Noun:
-
the arithmetic mean of the maximum and minimum distances of a celestial body (satellite or secondary star) from its primary
- A unit of length used for distances within the solar system,equal to the mean distance between the Earth and the Sun.
用来计算太阳系内距离的单位，等于地球到太阳的平均距离。
