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D/D
abbr., telecom.	Digital-Digital-Geschwindigkeitsanpassung
fin., abbr.	Documentary Draft
D.D.
abbr., chem.	Dichten
d/d
econ., BrE	delivered
fin., abbr.	day's date; days after date
d.D.
abbr.	der Direktor; die Direktion
aerodyn.	Direktion
d.d.
abbr.	vom Tag des Datums an
busin.	dangerous deck
D.d.
abbr., lat.	de dato (Лорина)
а. d. D.
mil.	an diesem Datum (golowko)

D/D: 13 phrases in 1 subject

Abbreviation

13