English ⇄ Bulgarian Chinese Taiwan English Finnish Hebrew Latvian Portuguese Russian Slovene Turkish Ukrainian

R/B
abbr., auto.	relay box
abbr., avia.	replaced by ...
abbr., earth.sc.	release to birth ratio
energ.ind.	release to birth
mil.	radio beacon
R&B
abbr.	Rhythm and Blues (commonly R and B)
abbr., comp.name.	Reading Bates Drilling Co.
abbr., mil., WMD	softening point determination by ring-and-ball procedure
abbr., oil	ring and ball
R.B.
abbr.	receipt book (Vosoni)
abbr., econ.	radio beacon
abbr., tech.	rebated and beaded
r.b.
abbr.	reconnaissance bomber; rubber band
abbr., photo.	revolving back; reversing back
mining.	roller bearing

R: 27 phrases in 4 subjects

Abbreviation	24
Chemistry	1
Law	1
Rail transport	1