Colloidal and dissolvedimpurities are more difficult to remove.
胶体和溶解性的杂质除去就要更困难。
2
It helps to remove un-dissolvedimpurities, such as harmful mould, protozoan, bacteria and virus effectively while preserve the minerals and chlorine in the water.
它能有效隔离水中不溶解物质如霉菌、原生虫,微生物,细菌和病毒,同时保留水中矿物质和杀菌的游离氯。
3
The process of removing suspended, colloidal, and dissolvedimpurities from liquid petroleum products by filtering, adsorption, chemical treatment, distillation, bleaching, etc.