资讯
17 小时
Interesting Engineering on MSN1,850 miles: NATO plans world’s-costliest ‘drone wall’ to counter RussiaNATO is building the world’s most advanced 1,850-mile “Drone Wall” from Norway to Poland to counter Russian threats.
18 小时
Interesting Engineering on MSNUS Army students’ hypersonic rocket smashes altitude record with 93-mile flightA US Army cadet team has shattered altitude records by launching a tactical hypersonic rocket 149 km (93 mile) into space.
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