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r/d
abbr.	registered
O&G	rig down (YMedentsii)
r.d.
abbr.	running days
R/D
abbr.	refer to drawer (Vosoni)
abbr., avia.	rate of descent; rate of descend; radial/distance; required data
abbr., EBRD	release date (raf)
abbr., econ.	refer to drawer (banking)
abbr., oil	redrilled; redrilling; rig down (andrushin); ran down
abbr., shipb.	rescue destroyer
R&D
abbr.	research and development
abbr., IT	research and design
abbr., mil., avia.	requirements and distribution
abbr., securit.	Research & Development
abbr., space	requirement and distribution
R & D
abbr., commer.	research and development
R.D.
abbr., lat.	Rural Dean
abbr., med.	registered dietitian (ПОХА)
R & D
abbr., tech.	reseach and development
R-D
abbr., el.	resolution-defocus diagram

r/d: 3 phrases in 1 subject

Abbreviation

3