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。

youdao

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。

youdao