Iinjineli zobuchule bendawo, ezi ziguquli zilungiselelwa ukunyuswa kwepali ukunciphisa iimfuno zendawo ephantsi Ulwakhiwo lwazo olukhaphukhaphu lwenza lula ukufakwa kunye nokunciphisa umthwalo wesakhiwo kwiipali.
Iinjineli zobuchule bendawo, ezi ziguquli zilungiselelwa ukunyuswa kwepali ukunciphisa iimfuno zendawo ephantsi Ulwakhiwo lwazo olukhaphukhaphu lwenza lula ukufakwa kunye nokunciphisa umthwalo wesakhiwo kwiipali.
Iinjineli zobuchule bendawo, ezi ziguquli zilungiselelwa ukunyuswa kwepali ukunciphisa iimfuno zendawo ephantsi Ulwakhiwo lwazo olukhaphukhaphu lwenza lula ukufakwa kunye nokunciphisa umthwalo wesakhiwo kwiipali.
Amatanki avaliweyo atywiniweyo (kwieyunithi ezizaliswe yioyile) okanye uyilo olugqunyiweyo (lweziguquli zodidi olomileyo) luthintela ungcoliseko kunye nokunciphisa iimfuno zogcino.
Ixhotyiswe ngezixhobo zokunciphisa uxinzelelo, ukubamba umbane, kunye nokhuseleko lomthwalo ogqithisiweyo ukuqinisekisa ukusebenza ngokukhuselekileyo. Iimodeli ezizaliswe ngeoyile zibandakanya ulwelo olumelana nomlilo okanye ezinye izinto ezinokuboliswa kukhuseleko olwandisiweyo.