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