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