Once airborne, the vertical descent path of the package would be controlled using one or more "control surfaces" - which could consist of wings, parachutes, or compressed air canisters.
一旦进行空运,包裹的垂直降落轨道将由一个或多个“操纵面”进行控制,包括机翼、降落伞或压缩的空气罐。
The vertical flight profile was assumed to have three flight segments climb, cruise and descent.
飞机纵向飞行剖面被假定分为三个飞行段:爬升、巡航和下降;
The Blender, or Panic maneuver is a vertical diving roll that virtually stops its descent as it instantaneously enters into a flat spin.
搅拌器,也叫“恐慌”,的动作指的是带着横滚的垂直俯冲,然后马上接能够保持高度不变的水平自旋。
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