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Lesi sikhunta sisetshenziswa ngokukhethekile ekukhiqizeni izindandatho zokungqubuzana.

Ukukhiqiza zonke izinhlobo zemikhiqizo ye-annular, ngoba imikhiqizo ayinalutho, isakhiwo sesikhunta sihlukile kumikhiqizo evamile.

Izici zalesi sikhunta yilezi:

(1) Idayizi emaphakathi inezibambo namarola

(2) Kunezigxobo zokuqondisa nemikhono eqondisayo, futhi ukugoqa isikhunta kubushelelezi

(3) Isikhunta singakhishwa lapho wengeza izinto ezingavuthiwe futhi ukhipha umkhiqizo, olungele ukusebenza.

Imingcele eyinhloko yesikhunta imi kanje: