Njengesixhobo esiqhelekileyo sokusetyenzwa kwemisonto yangaphakathi, iimpompo zinokwahlulwa zibe yimpompo ze-spiral groove, iitephu zokuthambekela emphethweni, iitephu zegroove ezithe ngqo kunye neetephu zombhobho ngokwemilo yazo.Yahlulahlulwe ngokwemetric, yaseMelika, kunye neetephu zasebukhosini.Iimpompo zikwazezona zixhobo zisetyenziswa ngokucofa iimpompo.Ke indlela yokukhetha itephu?Namhlanje ndiza kubelana nawe ngesikhokelo sokukhetha itephu...
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