备份星是什么意思-备份星的词语解释-相关组词-词语-近音词-同音词 - 掌上跨屏通词语词典

题目

更新时间：2025-03-05 01:35:02

求解答，词语备份星是什么意思？再说说备份星有什么含义？

答案

备份星的百科含义

备份星是指在先导星工作失效的情况下，接替先导星工作的卫星。嫦娥二号卫星就曾经是嫦娥一号卫星的备份星。

备份星的词语组词

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