Boleng jwa Mowa mo Exeter

Dikarolwana ke dikarolwana tse di kwa tlase ga 2.5 micrometers ka bophara tse di ka tsenelelang mo mafatlheng le mo mading, mme tsa baka mathata a a masisi a boitekanelo. Ditlamorago tse di masisi thata ke mo mafatlheng le mo pelong. Go tlhagelela go ka baka go gotlhola kgotsa go hema ka bothata, go gakatsa asma le go nna le bolwetse jo bo sa foleng jwa go hema.