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从航天领域来看，无论是太空基础设施建设还是深空探测，都离不开大量金属构件。有了太空金属3D打印技术，就能够实现原位制造、快速维修，极大提升太空任务的自主性与灵活性。，详情可参考17c 一起草官网
还有一些时候，家族群里的消息，会变成一种“炫耀”和“比较”，让亲情变得更加功利和疏离。，这一点在哔哩哔哩中也有详细论述
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So far, Trump has called for the Iranian military and the Revolutionary Guard to lay down their arms. But the Trump administration has provided no guidance on how to do so, or to whom to do so.