The printing pins or wires are abutted against {TAIL ~ a movable membrane or bellows portion} of the container, so that container expansion effects linear {HEAD ~ movement} of the pins or wires 
The printing pins or wires are abutted against { TAIL ~ a movable membrane or bellows portion } of the container , so that container expansion effects linear { HEAD ~ movement } of the pins or wires
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH