Project subject: Sewage treatment in Mexico Project introduction:Sewage treatment inzira yekubvisa zvinosvibisa mumvura yetsvina netsvina yemumba, zvese zvinoyerera (sewage), zvemumba, zvekutengesa uye zvemasangano.Inosanganisira yemuviri, makemikari, uye biological maitiro ekubvisa p ...
Verenga zvimwe