Dab tsi yog qhov sib txawv ntawm cov motors txhuam thiab muaj zog sib nqus?

1. Txhob txhuam lub cev siv zog siv cov khoom siv hluav taws xob ua haujlwm tau zoo dua li ua haujlwm ntau zaus, yog li lawv muaj zog ntau dua li kev ua txhaum cai ua tsis tiav.
2. Lub cev sib nqus muaj zog sib nqus, tseem muaj cov qauv siv los ntawm cov qauv yooj yim, tab sis vim tias lawv tau siv cov khoom siv yooj yim, uas ua rau muaj kev kho kom zoo dua thiab kev siv zog dua me ntsis.