Solar power continues to be used as an auxiliary energy source on spacecrafts and to power orbiting satellites .
太阳能电力继续作为辅助能源被应用在宇宙飞船上,并为轨道卫星提供动力。
Therefore , the study on acs design for underatuated spacecrafts is very important to both theoretical research and engineering application .
因此,开展欠驱动航天器姿态控制系统的分析与设计方法的研究,具有重要的理论意义和工程实际意义。
How many spacecrafts have orbited the moon ?
有多少艘太空船绕月球轨道运行?
How many spacecrafts are orbiting the moon ?
有多少航天器绕月球轨道飞行?
The spacecrafts were actually rovers .
太空船实际上成了漫游者.
In virtual worlds of online games , people often compete against other players by using various items , such as virtual swords , magic skills , automobiles , or spacecrafts .
So if nasa is looking to avoid any complications that would come with astronaut procreation , dr. joseph suggests sending two separate spacecrafts -- one containing only males and one containing only females -- or sending only married couples to mars .
Space adventures agreement with roscosmos for the flights is in large part due to the agency 's plans to increase production of the soyuz spacecraft , from four to five spacecrafts per year .
As the development of spacecraft technology , the formation flight of spacecrafts is more and more valuable . The capability of single complex satellite can be instead of spacecraft formation .
随着航天技术的发展,航天器的编队飞行越来越受到重视,单一大型卫星的功能由卫星编队协同实现。
The acs design for fully actuated spacecrafts is firstly discussed .