| 释义 |
rock·oon AHD[rŏ-ko͞onʹ] D.J.[rɒˈkuːn]K.K.[rɑˈkun]n.（名词）- A device used for high-altitude sounding, composed of a small, solid-propellant rocket that is launched from a balloon.气球火箭，高空探测火箭：一种由一个使用固体推进剂且从气球上发射的小型火箭组成的用于高空探测的装置
- rock(et) 1rock(et)1
- (ball)oon (ball)oon
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