{TAIL ~ a bypasses flow rate control valve} configured to control a flow rate of {HEAD ~ the exhaust gas} flowing in the bypass path, 
{ TAIL ~ a bypasses flow rate control valve } configured to control a flow rate of { HEAD ~ the exhaust gas } flowing in the bypass path ,
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH