Nyundo zobowola za Reverse Circulation RC ndi nyundo zoboola nyundo zimapereka magwiridwe antchito apamwamba komanso kudalirika komanso kuphweka.Nyundo zathu zozungulira zozungulira ndizoyenera pakuwunika kulikonse ndi njira zowongolera giredi kuti tipeze zitsanzo zolondola popanda kuipitsidwa.Nyundo zobowola za RC nthawi zambiri zimatha kusonkhanitsa mosalekeza mu kachigawo kakang'ono ka nthawi kofunikira ndi waya wamba kapena waya.