Answer
Mu masoko y'amazi yiziritse (aho imirongo ibiri cyangwa myinshi ihujwe hamwe), ikinyuranyo cyinsinga kigomba kuba cyerekanwe neza kugirango habeho kuringaniza imitwaro. Niba icyuho gihujwe, hari ahantu 'intege nke' ziherereye mu mpeshyi. Mubidukikije bihindagurika cyane, nko kohereza ibinyabiziga, ibi birashobora kuganisha kuri 'fretting' kumpande zicyuho no kwambara kutaringaniye hejuru yubukwe. Kugirango imikorere ikorwe neza, icyuho cyamasoko akurikiranye (niba ukoresheje amasoko menshi ahindurwamo icyuzi kimwe) bigomba guhindagurika kuri dogere $ 180 / N $, aho $ N $ numubare wumuraba, kugirango ukwirakwize imitwaro ya radiyo ihamye kandi wirinde guhuza amajwi.