The separation of charged particles that forms in a storm cloud has a sandwich-like structure.
在风暴云中形成的带电粒子分散形成的结构像三明治。
High-degree lightweight design is one of the key techniques for the high speed maglev train with the sandwich panel structure.
高度轻量化设计是具有三明治复合板结构特征的高速磁浮列车技术关键之一。
The mechanism of microwave heating was analyzed, and a new technics of repairing composite sandwich structure with microwave heating was introduced.
分析了微波加热机理，介绍了一种用微波加热固化技术粘接修理蜂窝夹芯结构的新工艺。
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