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rocket motor
avia. 火箭包
space 火箭发动机 (常指固体推进剂的火箭发动机或混合式发动机); 火箭发动机
rocket-motor
gen. 火箭发动机
rocket motor: 93 phrases in 8 subjects
Astronautics1
Aviation9
Earth sciences1
General3
Mathematics1
Space74
Technology2
United States2

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