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2025-07-18

“retro-engine”的英英意思

单词

retro-engine

释义

ˈretro-engine Astronautics.
Also as one word.
[f. retro- + engine n.]
= retro-rocket b.
1967Britannica Bk. of Year 804/1 Retro-engine, retro-rocket.1971New Scientist 6 May 305 Each Mariner..carries to Mars..about 1000 lbs of fuel for the 14-minute retroengine burn needed to slow it to the requisite orbital speed.1977Sci. Amer. Nov. 52/1 With the help of its retroengines and parachute it dropped to the surface of Mars.