yeokchujin bojo roket siseutem
retro propulsion assist rocket system
système de roquette d'assistance à la rétropropulsion
우주선은 역추진 보조 로켓 시스템을 사용하여 안전하게 착륙했다.
ujuseon-eun yeokchujin bojo roket siseutem-eul sayonghayeo anjeonhage chakryukhaetda.
The spacecraft used the retro propulsion assist rocket system to land safely.
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