{HEAD ~ An operation pipe} is disposed above the sealing cap in a direction perpendicular to {TAIL ~ the direction} in which an operation button is pushed 
{ HEAD ~ An operation pipe } is disposed above the sealing cap in a direction perpendicular to { TAIL ~ the direction } in which an operation button is pushed
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH