Umqamelo oluhlaza okhanyayo ubonisa ipateni yamagqabi ngaphambili nangasemva, ngokukhululekileyo yongeza umqamelo wesitayile setropikhi kwindawo yangaphandle.lo mqamelo oluhlaza oluhlaza ugubungela kakhulu umqamelo wepatio yangaphakathi okanye yangaphandle.