(一)什么叫航天器? 什么叫姿态控制? 在地球大气层以外的宇宙空间,执行探索、开发利用太空等航天任务的飞行器称为航天器。其中,载人航天器包括有空间站(题图)、航天飞机(图一)及宇宙飞船等;不载人航天器包括有各种人造卫星及空中探测器等。图二、三分别为菲律宾马布海1号通信卫星和美国奥内尔3号通信卫星,图四为美国X-33演示验证机。 (A) What is a spacecraft? What is attitude control? Spacecraft outside the Earth’s atmosphere, the implementation of exploration, development and utilization of space missions such as spacecraft called spacecraft. Among them, the manned spacecraft includes a space station (title map), a space shuttle (Figure 1) and a spacecraft; unmanned spacecraft includes a variety of satellites and air detectors. Figure II and III respectively, the Philippines Mabihai No. 1 communications satellite and the United States O’Neill No. 3 communications satellite, Figure IV for the United States X-33 demonstration machine.