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China launches energy-efficient carbon fiber metro train
A carbon fiber metro train, dubbed CETROVO 1.0, began passenger service on Friday in the port city of Qingdao in east China's ...
18 小时
《科学》(20250117出版)一周论文导读
建筑材料的特性来源于其内部结构元素的几何排列。他们的设计依靠连续的成员网络来控制整体的力学行为。研究者介绍了一类由离散的连接环或笼状颗粒联锁在三维网络中组成的材料,形成多联结构材料(PAM)。他们提出了一个通用的设计框架,将任意晶体网络转化为粒子连接和几何形状。
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