{HEAD ~ Deposit interaction elements} may effect thermal conditions, introduce substances, or physically interact with deposits within {TAIL ~ the trap device} 
{ HEAD ~ Deposit interaction elements } may effect thermal conditions , introduce substances , or physically interact with deposits within { TAIL ~ the trap device }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL