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发展路径各异 | 美国第六代武器库:B-21、F-47及空中优势的未来
诺斯罗普·格鲁曼公司的B-21“突袭者”轰炸机有望成为美国远程打击能力的中坚力量。B-21采用新一代隐形设计,相比B-2前身,维护负担更轻,价格也更实惠,因此被认为对遏制中国和伊朗等战略威胁至关重要。
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