The bright sky, people eagerly looking forward to the clouds, sky is blue, high in the sky is fluttering several kites.
白晃晃的天空里，人们翘望着云空，天是蓝蓝的，高空中飘飞着几个风筝。The 29-foot-long space plane, much smaller than the space shuttles, can stay in orbit for up to nine months.
这位29英尺长的空天飞机，比航天飞机更小，可以留在轨道上长达9个月。The problems concerning an aerospace vehicle's (ASV) atmospheric reentry flight attitude control system were researched.
研究了空天飞行器（ASV）再入跨大气层飞行时的姿态控制问题。Zelin hope that Russia and NATO can work together to strengthen the forces, and a unified air and space defense system.
泽林希望，俄能够与北约共同加强这一力量，提出了统一空天防御系统计划。Thus, the theory of synergetic optimization aerospace vehicles is becoming a key problem in designing.
因此适于多性能协同优化设计的理论成为空天飞行器概念设计成败的一个关键。Speaking of "air and space defense forces" , some people may immediately think of the space war.
说到“空天防御部队”，可能有人马上会想到太空大战。At least 13 more flights to the station are needed to complete construction.
要完成空间站的建设工作，至少还需要13次空天飞行。Mr Whitehorn believes that wider use of the vehicle will ultimately come with lifting payloads and satellites into space.
怀特霍姆先生认为，在向太空运送货物甚至人造卫星方面，他们的空天飞机还有着更广泛的用武之地。The Pentagon has repeatedly said that the space plane is simply a "test bed" for other technologies.
五角大楼曾多次表示，空天飞机仅是一个技术“试验床”。