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attitude control engine
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attitude control engine
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工学
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attitude control engine
姿控发动机
为运载火箭、弹头、航天器飞行的末速修改、姿态控制、推进剂沉底、位置保持等提供动力的小推力液体火箭发动机。
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factors affecting community structure
factors associated with elderly health
factor score
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