{HEAD ~ Plasma} is generated within {TAIL ~ the space} to cause dissociation of the hydrogen containing gas and promote a reaction between the material and hydrogen containing gas 
is generated within
{ HEAD ~ Plasma } is generated within { TAIL ~ the space } to cause dissociation of the hydrogen containing gas and promote a reaction between the material and hydrogen containing gas
HEAD HEAD HEAD HEAD HEAD REL REL 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