检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:Lance A. Davis
机构地区:[1]Senior Advisor, US National Academy of Engineering, USA
出 处:《Engineering》2018年第3期300-300,共1页工程(英文)
摘 要:In these pages [1], the successful 2016 recovery of the first stage booster of a Falcon 9 rocket on a drone ship in the Atlantic Ocean was recounted. The goal was to recover the booster for reuse, to reduce cost for subsequent launches, and it was only the second time a Falcon 9 booster was successfully recovered. Video of the booster landing on the ship was striking and demonstrated that recovery was possible at convenient points other than the launch site where the first recovery was achieved.笔者在文献[1]中讲述了2016年在大西洋无人船上成功回收了猎鹰9号火箭一级助推器。其目标是回收利用助推器,以降低后续火箭发射成本,这是猎鹰9号助推器第二次成功回收。助推器降落在海上无人船上的视频引人注目,表明除了像首次成功回收那样在发射场实现回收外,还可以在方便的地点实现回收。文中还指出,负责研制火箭的商业公司美国太空探索技术公司(SpaceX)
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:3.12.111.193