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free fall

包装 caída libre
机械工程, 建造 salto no anegado
航空, 运输 lanzamiento libre
Free Fall
文化学习 Caída libre (Golding, 1959)
 英语 词库
free fall
军队, 后勤 Phase of the drop during which the paratrooper or the load falls because of his own weight. It ends when the parachute starts working (FRA); A parachute maneuver in which the parachute is opened, either manually or automatically, at a predetermined altitude. (FRA)
缩写 ff
美国 A parachute maneuver in which the parachute is manually activated at the discretion of the jumper or automatically at a preset altitude (JP 3-17) 亦见 airdrop, air movement, free drop, high velocity drop, low velocity drop
free-fall
: 13 短语, 6 学科
建造1
技术3
机械工程3
爱好和消遣1
物理2
运输3