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RFU
abbr.
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abbr.
Relative Fluorescence Units
;
Reserved For Future Usage
;
Reference Frequency Unit
;
Reserved For Future Use
abbr., comp., net., IT
Really Fast Urf
abbr., food.ind.
Reach For Unbleached
abbr., IT
Residence Flag Unilateral
abbr., mil.
Radio Frequency Unit
;
Ready For Use
abbr., radio, scient.
Reserved for Future Use
abbr., sport.
Rugby Football Union
mil.
ready for use
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