Retroengine's firing time must the accuracy control, the firing time differ 1 second, will cause the airship point of descent position difference kilometer.

制发点火时间必须精确控制，点火时间相差1秒钟，就会飞船落点位置相差数公里。

The airship establishes the returns posture immediately, the returns cabin and the advancement cabin separates, the retrofire, starts from the outer space to the earth's surface returns.

飞船随即建立姿，舱与推进舱分离，制发点火，开始从太空向地球表面。