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中国航天科工集团第四研究院(以下简称“四院”)是中国航天科工集团公司的重要骨干单位,是集团公司建立国际一流航天防务公司不可或缺的研究院。在固体运载火箭、地地导弹武器系统研制方面,四院在全国具有举足轻重的地位。
The fourth institute of China Aerospace Science and Industry Corporation (hereinafter referred to as “the Fourth Hospital”) is an important backbone unit of China Aerospace Science and Industry Corporation and an indispensable research institute for the group company to establish a world-class aerospace defense company. In the development of solid carrier rockets and ground-based missile weapon systems, the four courtyards occupy a pivotal position throughout the country.