Amavalvu ebhola aklanyelwe ukunikeza amandla aphakeme nobuqotho ngokusebenzisa isistimu yegland enezindandatho eziningi eguquguqukayo njengakuvalvu yenaliti, okuthi uma ihlanganiswa nesiqu sesihlalo esivikela ukuqhunyiswa kwangemuva, iqinisekise ukumelana nazo zonke izinqubo zokusebenza nezingcindezi.