当然，当他们打开，降落伞，空气阻力剧增，他们下降的更缓慢。
Of course, then they open the parachute and then the air drag increases enormously and then they slow down even further.
和其他探测器相同，好奇号的母舱依靠隔热板、空气阻力和放出降落伞的方式来减慢下降速度。
As with the other rovers, Curiosity's mother ship will rely on heat shields and air-resistance, and then on a parachute, to slow its arrival.
最主要的原因是他们在自由下降阶段或者降落伞打开后，撞到了山上。
Hitting the mountain while free-falling or after the parachute deploys is a common cause.
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。
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。
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.
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