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) |