Some of them train skills in air landing with a parachute, hovering on the stocks under the supervision of an officer.
一些军人在练习乘降落伞空降技能，在军官的监督下吊在设备上训练。
Kittinger's test proved that an experimental parachute, designed by Francis Beaupre, would hold up under the most extreme conditions.
基廷格的试验证明，弗朗西斯·博普雷(Francis Beaupre)设计的实验降落伞，在最为极端的情况依然起作用。
A theoretical model of solid parachute canopy shape and stress computation under inflation and steady state conditions has been built.
建立了充满稳定状态下密实织物伞形状和应力计算的理论模型。
Children's favourite parachute and bubble time. Chasing bubbles on the colourful parachute; lap ride with mommy; pop bubbles and having so much fun under the big parachute.
彩色泡泡；坐在妈妈的腿上骑骑乐，戳破小泡泡，在大降落伞下度过金宝贝快乐时光。
Under the conditions of early rupture of the reefing lines, motion characteristics of parachute system were analyzed, and mathematic model of parachute-capsule system in the deployment was built.
分析了封包绳提前断裂状态下降落伞系统的运动特性，建立伞舱组合体在拉直阶段的动力学模型，计算了主伞的运动轨迹，分析了拉出的主伞与伞舱口的碰撞情况。
This paper analyses the trajectory of GPS automatics homing system in constant wind fields , and discusses the condition under which the gliding parachute system could reach preassigned location.
研究了全球卫星定位系统（ GPS）自动归航系统在恒定风场中归航轨迹的计算，探讨了系统能够达到预定目标点的条件，给出系统在几种变化风场中的轨迹图。
The dynamics model of parachute-munition system is used to analyze the motion characters of submunition under the effect of wind gust, and the calculation model of projective point is presented.
利用伞-弹系统动力学模型，从工程应用的角度出发，分析了阵风小扰动作用下，子弹姿态的运动特性，并以此为基础给出了末修子弹弹下点的计算模型。
The dynamics model of parachute-munition system is used to analyze the motion characters of submunition under the effect of wind gust, and the calculation model of projective point is presented.
利用伞-弹系统动力学模型，从工程应用的角度出发，分析了阵风小扰动作用下，子弹姿态的运动特性，并以此为基础给出了末修子弹弹下点的计算模型。
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