The tank filling pipe can also be sealed airtight by the closure flap or by {HEAD ~ a closure valve} arranged in {TAIL ~ the tank filling pipe} 
arranged in
The tank filling pipe can also be sealed airtight by the closure flap or by { HEAD ~ a closure valve } arranged in { TAIL ~ the tank filling pipe }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL