Water-proof materials

• 防水材料

Water-proof materials的用法和样例：

例句

1. Water proof material is usually used for inner packing.
   内包装通常采用一些防水材料。
2. It results from complementation of these hydrophobic or metal materials in property.
   上述现象被认为与防水材料或固定材料之间的性能互补有关。