stretching {TAIL ~ the carbon nanotube film} along a second direction substantially perpendicular with the first direction to obtain a stretched carbon nanotube film, wherein step comprises {HEAD ~ the substeps} of: 
stretching { TAIL ~ the carbon nanotube film } along a second direction substantially perpendicular with the first direction to obtain a stretched carbon nanotube film , wherein step comprises { HEAD ~ the substeps } of :
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH