retrorocket
n. 反向火箭;[航] 制动火箭
例句
The 27-year-old cosmonaut's mission lasted just 108 minutes and was fraught with drama: a break in data transmission, glitches involving antennas, a retrorocket and the separation of modules.
27岁宇航员首次任务只持续了108分钟,但是过程充满了戏剧性:数据传输中断、天线故障、制动火箭与部件分离。