PFRX means Preflight Relmat X-1,2,3...9 or A,B,C...Z in NASA




Similar to PFRX

A/C - Aircraft
A/C - Associate Contractor
A/C - Air Conditioning
A/D - Analog-to-Digital
A/E - Architectural and Engineering
A/E - Activity Elements
A/F - Air-to-Fuel Ratio

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