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solid rocket booster /ˈsɒlɪd ˈɹɒkɪt ˈbuːstə/ n

中文：固体火箭助推器

中文 · 固体火箭助推器Español · cohete de combustible sólidoFrançais · fusée à propergol solide
Meaning：Solid-fuel thruster that provides most of the lift during the first few minutes of flight, after which it separates.
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Ariane 5 rocket cutaway

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