Nyob rau hauv lub ntiaj teb intricate ntawm automotive engineering, txhua yam khoom ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev sib tw, txhim khu kev qha, thiab ua haujlwm tau zoo. Ntawm cov khoom tseem ceeb no, lub tensioner thiab pulley system, colloquially hu ua lub tensioner thiab pully, sawv tawm raws li lub ces kaum ...