ಸಂಪನ್ಮೂಲಗಳು ಟ್ಯಾಗ್: Gas Producers
4 items found (Showing 1 - 4)
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- Describes the physical and chemical processes leading to the production of biogases and describes procedures for constructing a digester to convert sewage and organic wastes to methane for use on farms and in homes