随着中国航天事业日益壮大，卫星和空间站的太阳能板和通信天线等大型结构的尺寸越来越大，以获得更好的功能，但运载舱或航天飞船的空间却有限。如何打破这个困境？折纸给出了最优答案——在地面将这些结构紧密地折迭起来，放入火箭整流罩或宇宙飞船船舱，到达太空后再重新展开以实现指定任务。但并不是所有的卫星天线都能像薄纸一样轻松折迭，高精度的固面天线必须使用厚板结构，而传统的折纸技巧对于这种有厚度的面板结构就显得束手无策，根本无法解决折迭过程中板厚引起的物理干涉。为此，我国科学家开创了基于空间机构的厚板折纸理论，实现了厚板结构的紧密折迭，解决了这一困扰工程界60多年的国际难题。但是，面对大型展开天线平整工作表面、规则几何形状，曲面结构等特殊要求，需要研究人员在理论的基础上做进一步深入研究，把这些原本不可能折迭的结构，统统折起来，甚至连立体厚板结构的紧密折迭也不在话下。这样，未来我们就可以用厚板折纸结构在月球建造基地了！
2025年01月05日，#床车#
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爆改花美男
从黄一鸣的一些言辞来看，她好像并没有什么想要攀附王思聪的意思，只是单纯的想要给自己的孩子一个完整的家。但是不管什么原因也不应该随地大小便。
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徐天一边说，一边朝边上挪了挪脚步，目光看着远远站着的花白凤和卢千阳，目光柔和但又多了一分忧虑。15嘀嘀影视-实时更新优质热播电影电视剧动漫综艺,高清...
品玩：大家讨论的中美之间的大模型竞争的时候都会不约而同讨论语料库的问题很多人觉得英文的语料库天然很好而中文就会相对受限一点你怎么看待这个问题
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