Generally, soils possess net electric charge which could attract metal cation.We could use of this property to adsorb metal cations or replace inorganic cations and remove heavy metal contamination.是什么意思_Generally, soils possess net electric charge which could attract metal cation.We could use of this property to adsorb metal cations or replace inorganic cations and remove heavy metal contamination.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句