A fluid control system for controlling the flow of {HEAD ~ nitrous oxide} and oxygen is attached to {TAIL ~ the mounting surface structure} 
A fluid control system for controlling the flow of { HEAD ~ nitrous oxide } and oxygen is attached to { TAIL ~ the mounting surface structure }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL