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固体火箭发动机 gùtǐ huǒjiàn fādòngjī
space solid rocket motor; solid propellant rocket engine; solid rocket; solid-rocket motor
固体推进剂火箭发动机
space solid propellant rocket engine; solid propellant rocket motor; solid propellant motor
火箭固体推进剂火箭发动机
gen. Solid Rocket Motor
固体推进剂,燃料火箭发动机
astronaut. solid propellant engine
固体 火箭 发动机: 50 phrases in 5 subjects
Aviation9
Earth sciences1
Space34
Transport2
United States4