{TAIL ~ Gas/vacuum and fracturing fluid} are supplied to {HEAD ~ hand piece} 36 via a set of supply lines 42 and 44 respectively 
{ TAIL ~ Gas / vacuum and fracturing fluid } are supplied to { HEAD ~ hand piece } 36 via a set of supply lines 42 and 44 respectively
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH