drawing {HEAD ~ a carbon nanotube film} from {TAIL ~ a carbon nanotube array} along a first direction 
from
drawing { HEAD ~ a carbon nanotube film } from { TAIL ~ a carbon nanotube array } along a first direction
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH