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parking orbit英英字典_parking orbit剑桥英语解释_parking orbit柯林斯英文解释_开心英文字典_柠咚词
开心英文字典

parking orbit

P 开头单词

柯林斯词典

    parking orbit

  • 1. N an orbit around the earth or moon in which a spacecraft can be placed temporarily in order to prepare for the next step in its programme 宇宙飞船暂泊轨道

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