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。
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.
操纵游戏车的高精度开关可以使车子暂时的停在轨道上。
Occasionally the highly sensitive switches that monitor the car's position will temporarily strand a car on the track.
他停下死在他的轨道，与他的左脚无所不能，用他的右脚来操纵在我左边的球。
He stopped dead inh is tracks, pivoted with his left foot, and used his right foot to maneuver the ball around my left.
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