porous sample

• 多孔材料

porous sample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. Corners should be rounded and the external wall should be uniform in structure and porous to water vapour.
   墙角应当抹圆，外墙结构应当均匀，且应当应用多孔材料。