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全球军备行业报告2024年第二季度
Global Armaments - Industry Report - Q2 2024
Defense News - Northrop’s colossal Manta Ray underwater drone passes at-sea tests - 3/5/2024 Northrop Grumman’s massive Manta Ray underwater test bed completed at-sea trials this year, validating its ability to operate below the waves and with minimal human contact.