英语词汇mean distance怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	mean distance
释义	mean distance【天】 1. (行星的远日点和近日点离太阳的)平均距离(为测定行星轨道必要的数据之一) The earth's mean distance from the sun is about 92,900,000 miles. 地球远日点和近日点与太阳之间的平均距离为9290万英里。 2. (恒星或行星等天体)离轨道中心最大与最小距离的平均距离
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