fire retardancy

• 防火性

fire retardancy的用法和样例：

例句

1. Expanded perlite's light weight, low density, porosity, fire resistance, and the strength of particles have secured its use in a wide range of products.
   膨胀珍珠岩的轻质，低密度，多孔性，防火性以及强度保证了应用的广泛性。