propulsion gun
Astronautics
noun
A hand-held device used by an astronaut which expels a jet of compressed gas to provide propulsion.
Origin
1950s; earliest use found in Carsbie Adams (b. 1922).
| 单词 | propulsion gun |
| 释义 | propulsion gunAstronautics noun A hand-held device used by an astronaut which expels a jet of compressed gas to provide propulsion. Origin |
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