飞行姿态宇宙飞船相对于其飞行方向所处的位置 The orientation of a spacecraft relative to its direction of motion.
数据的一种集合,其中每一项可唯一地被一个标号或相对于其它项的位置或某些其它方法所标识。 A collection of data in which each item is uniquely identified by a label, by its position relative to the other items or by some other means.
空气动力学相对于气体的物体移动,特别是移动物体与大气相互作用的动力学 The dynamics of bodies moving relative to gases, especially the interaction of moving objects with the atmosphere.