“humic substance”造句，怎麼用humic substance造句

Oxidation and coagulation of humic substances from landfill leachate by Fenton's reagent

Influence of pressure on the separation of humic substances from MBR effluent of landfill leachate by ultrafiltration

Extraction of humic substances from sediments is often the first task that confronts the investigator.

In the immense and vast global biosphere, there exists a kind of noteless melanocratic organic matter which is humic substances.