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