At the end of its operating time, the component has, for example, a depletion of {HEAD ~ aluminium} in {TAIL ~ a region} near the surface 
in
At the end of its operating time , the component has , for example , a depletion of { HEAD ~ aluminium } in { TAIL ~ a region } near the surface
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH