Kungani imishini yokushisa yokufakelwa uthambekele ekuhlulekeni ngokwedlulele?

Izizathu zokwehluleka okwedlulele kwemishini yokushisisa yokungeniswa ngokuvamile yilezi: ukwakheka nosayizi wekhoyili yokungeniswa ekhiqizwayo akulungile, ibanga eliphakathi kwendawo yokusebenza nekhoyili yokungeniswa lincane kakhulu, kukhona okwenzeka phakathi kwesekhethi kanye neyokuthungela. ucezu lokusebenza kanye nekhoyili yokungeniswa noma ikhoyili yokungeniswa ngokwayo, kanye nekhoyili yokungeniswa elungiselelwe iku Uma isetshenziswa, ithintwa insimbi yekhasimende noma izinto zensimbi eziseduze, njll.