Official Answer
Answer
Groove dishing irangwa nurukuta rwa groove ruba inguni aho kuba perpendicular kuri axe. Ibi biterwa numutwaro uremereye urenze ibikoresho bya groove imbaraga. Mugihe urukuta ruhindutse, impeta izenguruka itangira kugoreka ('isahani'). Imbaraga za radial, ubusanzwe zituma impeta yicara, ubu itezimbere icyerekezo cyerekana hanze. Niba impande zimpeta zirenze $ 7 $ kugeza $ 10 $ dogere, bizatakaza gufata byose hanyuma bisohoke. Ba injeniyeri bagomba gushakisha uburyo bwo kwambara 'bubengerana' kumpera yinyuma yimpeta nkibibanziriza kunanirwa.
