{TAIL ~ The second valve} is provided in the second connection passage to open and close {HEAD ~ the second connection passage} 
{ TAIL ~ The second valve } is provided in the second connection passage to open and close { HEAD ~ the second connection passage }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD