Complex sentence: Rotors are manufactured from alternate layers of flat and corrugated sheets impregnated with the active component (desiccant), thus forming a vast number of axial air channels running parallel through the structure.
Split into simpler sentences: Rotors are manufactured from alternate layers of flat and corrugated sheets impregnated with the active component (desiccant). This forms a vast number of axial air channels running parallel through the structure.