Original sentence: Virtual Token Descriptor for eXtensible Markup Language (VTD-XML) refers to a collection of efficient XML processing technologies centered around a non-extractive XML, "document-centric" parsing technique called Virtual Token Descriptor (VTD)
Edited sentence: Virtual Token Descriptor for eXtensible Markup Language (VTD-XML) refers to a collection of XML processing technologies centered around a non-extractive XML, "document-centric" parsing technique called Virtual Token Descriptor (VTD)