Adopt filter paper to be filter material.

采用滤纸作为过滤材料。

youdao

Its principle is to use filter oil on paper can absorb water and filter impurities.

它的原理就是利用滤油纸吸收水分、过滤杂质。

youdao

Its principle is to use filter oil on paper can absorb water and filter impurities.

它的原理就是利用滤油纸吸收水分、过滤杂质。

youdao