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美国CoAspire与Divergent公司联合研发3D打印巡航导弹完成飞行测试
美国导弹系统专业承包商CoAspire与人工智能驱动的3D制造解决方案提供商Divergent ...
China.org.cn13 天
South Africa ready to host G20 Leaders' Summit, says foreign minister
JOHANNESBURG, May 12 (Xinhua) -- South Africa is on track to welcome and host Group of 20 (G20) leaders at the Johannesburg Summit this November, Minister of International Relations and Cooperation ...