| http://www.w3.org/ns/prov#value | - In these techniques, a source gas including hydrogen and carbon (either a single gas or a mixture of gases, with one of the gases even possibly being molecular hydrogen), typically acetylene, is mixed with a source of oxygen (typically O2 gas) and reacted, under combustion conditions, or mixed with an inert gas such as Ar and reacted under plasma conditions, to grow diamond on an appropriate subst
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