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波音的首个载人太空船试飞，可能要帮忙做正式任务
source link: https://cn.engadget.com/2018/04/07/nasa-boeing-crewed-flight-test-operational-mission/
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NASA 宣布刚更新了他们与波音的商用飞行合约内容。波音公司是两家与 NASA 签下提供商用载人太空船服务的合约商之一，为他们打造搭载宇航员往来国际空间站的太空船。合约的改动内容是针对他们的首次试飞，包括能延长飞行（由 2 星期至最长 6 个月）和加入第三名乘客。换言之，首次试飞可能不单是只进行飞行测试，而是有可能帮助...
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