Ungakususa kanjani ukukhanya kwethrekhi yakudala?

1. Vala iswishi kagesi.
2. Lungisa ukuqondiswa kwe-adaptha ukuze kube nendawo evundlile ukuze isibani sethrekhi singakhiywa kujantshi wethrekhi, bese usebenzisa izandla ezimbili ukukhipha ilambu lethrekhi.