C2 noun #77,240 最常用

the arithmetic mean of the maximum and minimum distances of a celestial body (satellite or secondary star) from its primary

mean distance 30秒了解

  • (noun) the arithmetic mean of the maximum and minimum distances of a celestial body (satellite or secondary star) from its primary

Meanings

  1. 1
    noun the arithmetic mean of the maximum and minimum distances of a celestial body (satellite or secondary star) from its primary
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