飞船登上月球需要几次变轨?如何变轨?阿波罗号登月是如何过程的?
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![飞船登上月球需要几次变轨?如何变轨?阿波罗号登月是如何过程的?](/uploads/image/z/11005682-50-2.jpg?t=%E9%A3%9E%E8%88%B9%E7%99%BB%E4%B8%8A%E6%9C%88%E7%90%83%E9%9C%80%E8%A6%81%E5%87%A0%E6%AC%A1%E5%8F%98%E8%BD%A8%3F%E5%A6%82%E4%BD%95%E5%8F%98%E8%BD%A8%3F%E9%98%BF%E6%B3%A2%E7%BD%97%E5%8F%B7%E7%99%BB%E6%9C%88%E6%98%AF%E5%A6%82%E4%BD%95%E8%BF%87%E7%A8%8B%E7%9A%84%3F)
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