| 释义 |
rockoon
rock·oon R0279600 (rŏ-ko͞on′)n. A device used for high-altitude sounding, composed of a small, solid-propellant rocket that is launched from a balloon.
[rock(et) + (ball)oon.]rockoon (rɒˈkuːn) n (Astronautics) a rocket carrying scientific equipment for studying the upper atmosphere, fired from a balloon at high altitude[C20: from rocket1 + balloon]
rockoon
rockoon (rok-oon ) A device for exploring the upper atmosphere of the Earth. It consists of a large balloon to which is attached a small rocket. The rocket is fired at a considerable altitude, thus avoiding the air drag of the lower atmosphere. The balloons are usually Skyhooks: large nondilatable plastic balloons that can carry a heavy load to altitudes of over 30 km.rockoon[rä′kün] (aerospace engineering) A high-altitude sounding system consisting of a small solid-propellant research rocket carried aloft by a large plastic balloon. |