em la linh mọidang hoc o mot tiem dien oto.moi thao tac chu yeu la do qwen ma thoịchu can ban thi em ko dc biet nhieu.em ko biet nguyen ly hoat dong cua may lanh ôt the nao.ma loc lanh va quat gio no dung chung mot nguondien co pai ko a?tuc lakhi quat gio chay thi loc lanh dong dung ko a?lam on...