“humic substance”可以造什么句，humic substance造句

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.

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

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