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.
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。
Metals such as aluminum can also form foams -- and because of their greater rigidity, they could, in theory, dissipate as much energy as a polymer foam in a much thinner layer.
金属，如铝，也可以制备成泡沫材料。 由于金属更高的刚度，理论上，更薄金属泡沫就可以吸收聚苯乙烯泡沫所能吸收的能量。
Chile needs to regain its momentum, say critics, and work out kinks such as lost productivity and rigidity in labor laws.
评论家表示，智利需要重拾动力，同时走出他的老路如低下的生产率和呆板的劳动法。
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