What Does it Stand For?
A database of acronyms
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What Does OPB Stand For?
OPB stands for Oxidizer Preburner
NASA Acronyms
Added on 14/04/2008 | Edit this acronym
A database of acronyms
OPB stands for Oxidizer Preburner
NASA Acronyms
Added on 14/04/2008 | Edit this acronym