1 نتائج 'biogas'
Biogas
Renewable energy sources
Agricultural wastes, Biomass energy, Fertilizers, Waste treatment
Science
> Natural resources
Biogás (es), Биогаз (ru), غاز حيوي (ar), غاز أحيائي (ar), Biogaz (fr)
http://vocabularies.unesco.org/thesaurus/concept1832