Deep Space Flight and Communications: Exploiting the girro 2015年5月23日 10 阅读 0 评论 工程 Deep Space Flight and Communications: Exploiting the Sun as a Gravitational Lens (Springer Praxis Books / Astronautical Engineering) Hardcover: 416 pages Publisher: Springer (March 10, 2009) Language: English ISBN-10: 3540729429 代发服务PDF电子书10元立即求助