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固体火箭发动机喷管
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固体火箭发动机喷管
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固体火箭发动机喷管
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solid rocket motor nozzle
固体火箭发动机喷管
将燃烧室药柱燃烧产生的燃气的热能和压强势能转换为动能,形成高速排气射流、产生推力的装置。是固体火箭发动机的重要组件。
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number sign
Numbers of personal days
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numbers prime to one another
number square
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number system
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number-theoretic formula
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number-theoretic transformation
number theory
number three in palace examination
number transformation
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