{TAIL ~ The piezoelectric system} is effective to move {HEAD ~ the flow control member} 128, 129 between the open and closed positions 
{ TAIL ~ The piezoelectric system } is effective to move { HEAD ~ the flow control member } 128 , 129 between the open and closed positions
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH