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