Ukugxiviza kusetshenziswa kakhulu emikhakheni eyahlukene yomnotho wezwe.Isibonelo, ukucubungula isitembu kuyatholakala ku-aerospace, endizeni, ezempi, emishinini, emishinini yezolimo, e-electronics, ulwazi, izitimela, amaposi kanye nezokuxhumana, ezokuthutha, amakhemikhali, m...
Funda kabanzi