AK27I means 73% nitric acid + 27% N2O4 + Iodine passivant
AK = Azotna Kislota = Nitric Acid in
NASA
Similar to AK27I
ABHRS - As Built Hardware Reporting System
ABL - Allocated BaseLine
ABOLT - Acquire Bolt
ABS - Anti Burn Shield
ABS - After Body Section
ABS - Air Breathing System
ABS - Air Base Supply
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