Simply introduces some current domestic Technology: by silicate, by phosphate, by boric, the FRHC law.

简单介绍了目前国内外的几种除铅技术：硅酸盐法、磷酸法、硼酸法及FRHC法。

youdao

Simply introduces some current domestic Technology: by silicate, by phosphate, by boric, the FRHC law.

简单介绍了目前国内外的几种除铅技术：硅酸盐法、磷酸法、硼酸法及FRHC法。

youdao