均质石英砂滤料是当前国内水厂过滤技术应用的主要填料之一。

Uniform quartz sand media is one of the main media in present filtration technology application.

youdao

均质石英砂滤料是当前国内水厂过滤技术应用的主要填料之一。

Uniform quartz sand media is one of the main media in present filtration technology application.

youdao