Official Answer
Answer
Umukono watsinzwe wimpeta yamenetse birenze urugero: 1) Imiterere ihoraho ya 'conical' kumpeta iyo ikuweho, 2) Kwambara ibimenyetso gusa kumpera yimbere yimbere yimpeta no kumpera yinyuma yurukuta rwinyuma, na 3) A 'kuzunguruka' cyangwa kuzengurutse kumurongo wamazu. Ibi byerekana ko umutwaro wa axial warenze imbaraga za groove yumusaruro cyangwa impeta yunamye. Isesengura ry'ubucamanza ririmo gupima 'inguni y'ibiryo.' Niba inguni ari $> 5 ° $, inteko yaremerewe cyane. Gukosora bikubiyemo kongera ubujyakuzimu bwa $ d $ cyangwa gukoresha ibikoresho byamazu yo hejuru.
