School Noise Control Metal Transparent Sound Barrier Project
Pofuna kuti zisakhudze kalasi yabwino ya ophunzira pasukulu yotsatira, adaganiza zoyika chotchinga chochepetsera phokoso pafupi ndi gwero la phokoso.Chotchinga chamsewu chamsewu chimapangidwa ndi zitsulo zokhala ndi malata, kutalika kwa mita 3.5 ndi angled pamwamba, zomwe zimalepheretsa phokoso la ophunzira asukulu.
Nthawi yotumiza: Nov-01-2019