Xarunteenna caafimaad ee luqadaha kala duwan, muddo 25 sano ah, waxay siineysay tababar takhasus leh, oo ay kujirto daryeelka caafimaadka tikniyoolajiyada sare ee carruurta. Sanadkan gudihiisa, qiyaastii 5,000 oo bukaan ayaa lagu daweeyaa cisbitaalka qeybta takhasuska daaweynta iyo qalliinka.