Also, this greater width of {HEAD ~ the film} 32 keeps {TAIL ~ its lateral edges} free from contact with the processing composition 
keeps
Also , this greater width of { HEAD ~ the film } 32 keeps { TAIL ~ its lateral edges } free from contact with the processing composition
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH