PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Thus, one of the problems in achieving an optimal quartz fusion weld is controlling how much energy is applied so that the quartz workpiece reaches a weldable condition without being vaporized. [0009] Prior attempts to fusion weld quartz have used a hydrogen oxygen flame to apply energy to the weldable surface of the quartz workpiece.
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  • google.com