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[QJ 3292-2007] 固体火箭发动机燃烧室壳体焊缝X射线实时成像检测方法[现行]
发布时间：2007-05-22
实施时间：2007-11-01
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[HB 5630-1981] 交流修正电机定子片组件[已作废]
发布时间：1981-05-06
实施时间：1981-10-01
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