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The meaning of the Acronym OPSB is...

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Governmental
NASA
OPSB

OPSB is

Orbiter Processing Support Building

OPSB is also in:

NASA

Acronym Definition Searched: EVA ST 53401 FEAR KC PDT 95853 PE OSFS E 54471 VGP 61085 ACS (CBER) 16058

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