{HEAD ~ The sulfur oxide monitoring device} 62 sends {TAIL ~ a signal} to controller 64 wherein this signal is compared to a set point signal 66, which in this case would represent a preselected sulfur oxide emission level known to be below that required by local air pollution regulations 
sends
{ HEAD ~ The sulfur oxide monitoring device } 62 sends { TAIL ~ a signal } to controller 64 wherein this signal is compared to a set point signal 66 , which in this case would represent a preselected sulfur oxide emission level known to be below that required by local air pollution regulations
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH