In this manner, a constant pressure chamber A and a variable pressure chamber B are defined across the front diaphragm 11 while another constant pressure chamber C and another variable pressure chamber {HEAD ~ D} are defined across {TAIL ~ the rear diaphragm} 12 
In this manner , a constant pressure chamber A and a variable pressure chamber B are defined across the front diaphragm 11 while another constant pressure chamber C and another variable pressure chamber { HEAD ~ D } are defined across { TAIL ~ the rear diaphragm } 12
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH