HFRR in Electronics could mean:
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HydroFluoric acid Reprocessor Return system
in Electronics
HydroFluoric acid Reprocessor Return system
in Electronics




Similar to HFRR

4P4T - Quad-Pole Quad-Throw
4W - 4-Watt Resistor
4WA - Four Wire Analog
4WAI - 4-Wire Analog Interface
4WH - Four Watt-Hour capacity
4WJ - Four-Way Junction
4WM - Four Wave Mixing

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