{HEAD ~ A needle} is positioned on {TAIL ~ the end} of the cylinder and discharges liquid through an opening as the plunger forces the liquid to the bottom of the cylinder 
is positioned on
{ HEAD ~ A needle } is positioned on { TAIL ~ the end } of the cylinder and discharges liquid through an opening as the plunger forces the liquid to the bottom of the cylinder
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL 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