{TAIL ~ A process} for abrading the membrane and {HEAD ~ an electrolytic cell} using the membrane are also claimed 
{ TAIL ~ A process } for abrading the membrane and { HEAD ~ an electrolytic cell } using the membrane are also claimed
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH