| 释义 |
retrorocket ret.ro.rock.et AHD: [rµt“r½-r¼k”¹t] D.J. [6retr*&7rKk!t]K.K. [6rWtro7r$k!t]n.(名词)A rocket engine used to retard, arrest, or reverse the motion of a vehicle, such as an aircraft, a missile, or a spacecraft.制动火箭:用于阻滞、抑制或使运载物(如飞行器、导弹或太空飞行器)反向运动的火箭引擎 |