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美军继续联合攻击弹药的研制美国空军已选择了马丁·马丽埃塔公司和麦克唐纳·道格拉斯宇航公司进行联合直接攻击弹药（ＪＤＡＭ）工程与制造开发第一阶段的竞争。这两家公司分别与美国空军航空系统中心签定了价值为１３８０万和３５００万美元的合同，他们将提供惯性制导...
U.S. Continues Joint Attack on Ammunition The U.S. Air Force has chosen Martin Marietta and McDonnell Douglas Aerospace Corporation to conduct the first phase of JDAM engineering and manufacturing development. The two companies signed contracts valued at $ 13.8 million and $ 35 million with the U.S. Air Force Aviation Systems Center and will provide inertial guidance ...