perforated materials

• 多孔材料

perforated materials的用法和样例：

例句

1. Hygrometers based on porous materials are neither accurate nor quick response.
   以多孔材料作成的湿度计既不准确，响应又慢。
2. Anhydrite products are lacunaris materials, proning to absorb water.
   硬石膏制品是一种多孔材料，吸水能力非常强。