Dabere na akụkọ ọhụrụ Global Solar Thermal Report 2021 (lee n'okpuru), ahịa ahịa thermal nke German na-eto site na pasenti 26 na 2020, karịa ahịa ahịa thermal ọ bụla ọzọ n'ụwa niile, Harald Drück, onye nyocha na Institute for Building Energetics, Thermal Teknụzụ kwuru. na Nchekwa Ike...
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