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乘客只会死的更快：给客机安装弹射座椅和降落伞，毫无意义

乘客只会死的更快：给客机安装弹射座椅和降落伞，毫无意义
163.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from 163.com Daily Mail and Mail on Sunday newspapers.

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NBA 休賽季：整體操作最出色的球隊 - 西區 - NBA - 籃球 | 運動視界 Sports Vision

NBA 休賽季：整體操作最出色的球隊 - 西區 - NBA - 籃球 | 運動視界 Sports Vision
sportsv.net - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from sportsv.net Daily Mail and Mail on Sunday newspapers.

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觀點丨發展重複使用航天運輸系統究竟有多難？

　　重複使用航天運輸系統是指可多次往返於地面與空間軌道、多次重複使用的航天運輸系統，具有“自由進出空間、按需返回地面、多次重複使用”的典型特徵。重複使用技術是航天運輸發展的前沿方向，是實現安全、可靠、快速、自由、低成本進出空間的有效途徑，具.

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继锆石之后，kh-95高超音速导弹闪亮登场_军事_中华网

作者：骆承志吴凡高学磊日前，俄罗斯武装力量总参谋部军事学院院长弗拉基米尔·扎鲁德尼茨斯基上将在接受《军事思想》杂志采访时透露：继“锆石”之后

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SpaceX星舰设计演变简史（上）

聚合优质的创新信息与人群，捕获精选|深度|犀利的商业科技资讯。在虎嗅，不错过互联网的每个重要时刻。

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