However, it is also within the scope of the present invention to provide {HEAD ~ a direct source} of {TAIL ~ reactant gas} from high pressure storage devices such as cylinders, tubes or direct vaporization of gas stored as a liquid 
of
However , it is also within the scope of the present invention to provide { HEAD ~ a direct source } of { TAIL ~ reactant gas } from high pressure storage devices such as cylinders , tubes or direct vaporization of gas stored as a liquid
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD 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