Official Answer
Answer
Lalacewa mai jujjuyawa yana bayyana azaman ja-launin ruwan kasa (na karfe) ko baƙar fata (na bakin) tarkace a wuraren hulɗa tsakanin kololuwar bazara da saman mating. Yana haifar da ƙananan oscillations ($< 100 \ mu m$) ƙarƙashin kaya. tarkace yana aiki azaman abin ƙyama, yana haɓaka lalacewa. Dabarun ragewa sun haɗa da: 1) Ƙara kayan aiki don dakatar da motsi; 2) Aiwatar da busasshen man shafawa na fim (misali, $MoS_2$) don rage yawan juzu'i; 3) Hardening da mating surface; ko 4) Canja kayan bazara zuwa wanda mafi kyawun juriya, kamar tagulla na phosphor ko na musamman nickel gami.
