An yi nasarar gudanar da bikin baje kolin kare muhalli na kasa da kasa karo na 21 na kasar Sin CIEPEC 2023 a birnin Beijing - cibiyar baje kolin kasa da kasa ta kasar Sin (Chaoyang Hall) daga ranar 13-15 ga Afrilu, 2023. Organi...
Don gano zub da jini don Filter HEPA, sananne ne don amfani da photometer aerosol don gwaji. Injiniyoyi sun gwada ZR-6012 Aerosol Photometer dare da rana. Yau, za a fito da mashaya...