传统的钢框架分析和设计都假定梁与柱的连接是完全刚性的，或是按理想铰接的。
The traditional analysis and design of steel frame assume beam-column connections are fully rigid or ideal pin connection.
实验还发现，木屑粒子与煤粒这类刚性粒子的流动特性不完全相同，木屑粒子之间相互作用较大。
It was also found the flow characteristics are not totally same between sawdust particles and rigid particles such as coal grain. Interaction between sawdust particles is much significant.
试验证明，纳米pa具有更好的刚性、耐热性、透明性等性能，完全可以替代PA 6作为基础树脂用料。
The results verified that nanometer pa possessed superior physical properties such as rigidity, heat resistance and transparency, which could be used for replacing pa 6 as basic resin material.
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