Similar to 4SR-21

ACF - Activated Carbon Filter
ACFC - Air Cooled Flooded Chiller
ACFH - Animal Chatter Farm - Horse
ACFMS - Airframe Cumulative Fatigue Monitoring System
ACFX - Air-Cooled Flooded Chiller
ACFZ - Arctic Cooling FreeZer
ACG - Additive Congruential Generator

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