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中国首次在轨道上测试了激光金属3D打印。这项“天工坊”技术将减少对地球的依赖，并降低太空维修成本。了解这一突破的细节！
中国在天舟货运飞船上成功进行了历史上首次金属3D打印测试。了解这项技术将如何改变太空任务、在轨维修和深空探索。
