Official Answer
Answer
Gutondekanya amasoko yumurongo (crest-to-crest) byongera gutandukana $ f_ {byose} = f_1 + f_2 $ mugihe umutwaro $ P $ uhoraho. Ibyago hano birahangayitse; niba uburebure bwubusa kuri diameter irenze 3: 1, igipande gishobora kugorama. Gutondekanya muburyo bubangikanye (byashyizwe) byongera umutwaro $ P_ {yose} = P_1 + P_2 $ kugirango uhindurwe. Ingaruka muburyo bubangikanye nugukwirakwiza imitwaro itaringaniye niba imiraba idahujwe neza, biganisha kumurongo ukabije. Kuyobora neza (shafts cyangwa bores) ni itegeko kubintu byose byashizwe hamwe kugirango byemeze guhuza umurongo.
