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