Ukufakwa kombhobho kudlala indima ebalulekileyo kumashishini ahlukeneyo, ukuqinisekisa ukuhanjiswa okukhuselekileyo nokusebenzayo kolwelo neegesi. Ukususela kwimizi-mveliso ukuya kwiindawo zokwakha, ezi zinto zifakelweyo zizinto ezibalulekileyo ezidibanisa imibhobho nezixhobo, ezivumela ukusebenza ngokungenamthungo. Nangona kunjalo, ukukhetha imodeli
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