制动发动机

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

制动发动机的时间必须精确控制，时间相差1秒钟，就会落位置相差数公里。

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.

随即建立返姿态，返舱与推进舱分离，制动发动机，始从太空向地球表面返。