| 释义 |
retro-rocket
UK [ˌret.rəʊ'rɒk.ɪt] US [-rə'rɑ:.kɪt] noun countable
■a rocket on a spacecraft or an aircraft that fires in the opposite direction to the direction in which the vehicle is travelling, in order to slow it down 反推进火箭；制动火箭（太空船或航空器上的一种火箭，它的发射方向与太空船或航空器的飞行方向相反，从而使之减速） |