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Explainer: What is NATO chief's proposal for military aid for Ukraine?
Reuters· 6 日前NATO ministers will on Friday debate a proposal by alliance boss Jens Stoltenberg for a ...
Startup Ursa Major advances US hypersonic capabilities with new engine
Reuters· 7 日前Ursa Major, a startup rocket motor maker, has successfully test-fired its new Draper engine more than 50 times on the ground ...
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