{TAIL ~ Computer} 36 may also automatically activate {HEAD ~ the conventional alarm} 32 to alert the drilling operator to the occurrence of a kick 
{ TAIL ~ Computer } 36 may also automatically activate { HEAD ~ the conventional alarm } 32 to alert the drilling operator to the occurrence of a kick
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH