质量是一个永恒问题，更是军工产品的生命线，也是导航、制导与控制系统研制和生产中所存在的一个关键问题。
Quality is a permanent problem. It is not only a lifeline of military products, but also a key problem of research and production in navigation, guidance and control system domain.
质量是一个永恒问题，更是军工产品的生命线，也是导航、制导与控制系统研制和生产中所存在的一个关键问题。
Quality is a permanent problem. It is not only a lifeline of military products, but also a key problem of research and production in navigation, guidance and control system domain.
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