the opening of said second outlet in relation to the opening of said second inlet increases with {HEAD ~ the increase} in {TAIL ~ the displacement} of said pressure detecting portion 
in
the opening of said second outlet in relation to the opening of said second inlet increases with { HEAD ~ the increase } in { TAIL ~ the displacement } of said pressure detecting portion
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH