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Apollo Mondlandung

799 2 years ago 1 year ago

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美国阿波罗载人登月工程

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载人登月工程是美国国家航空和航天局在二十世纪六七十年代组织实施的载人登月工程，或称“阿波罗计划”。阿波罗计划采用月球轨道交会法，用强大的土星五型运载火箭把５０吨重的航天器送入月球轨道。航天器入月球轨道。航天器本身装有较小的火箭发动机，当它接近月球时，能使航天器减速进入绕月轨道。而且，航天器的一部分——装有火箭发动机的登月舱能脱离航天器，载着宇航员登上月球，并返回绕月轨道与阿波罗航天器结合。工程开始于１９６１年５月，至１９７２年１２月第６次登月成功结束，历时约１１年，耗资２５５亿美元。在工程高峰时期，参加工程的有２万家企业、２００多所大学和８０多个科研机构，总人数超过３０万人。(Quelle:http://news.xinhuanet.com/)

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5 years ago 2 years ago

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5 years ago 2 years ago

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19 years ago 2 years ago

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