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I&C
abbr.	Control and Instrumentation (Yuliya13)
abbr., busin.	inspection and checkout; integration and checkout
abbr., comp.	information and communication (bonly)
abbr., el.	identification and control
abbr., mil.	Issues and Criteria
abbr., mil., avia.	industry and construction
abbr., mil., WMD	Instrumentation and control
abbr., qual.cont.	installation and calibration; installation and check-out
abbr., tech.	installation and commissioning (Galka_I)
energ.ind.	installation and checkout; instrumentation and control
tech.	inspection and control
I.C.
abbr.	ironclad
abbr., dat.proc.	interval of confidence (igisheva)
abbr., earth.sc.	Institute of Chemistry
abbr., econ.	information content
abbr., el.	intelligence community
abbr., gymn.	intermediate circle
abbr., lat.	Bibas In Christo (or Vivas In Christo, "may you live in Christ")
abbr., law	Idaho Code; Indiana Code; International Certificate; Iowa Code
abbr., met.	iron constantan; inflation crown
I/C
abbr.	identification card (Ася Кудрявцева)
abbr., account.	intercompany
abbr., auto.	integrated circuit
abbr., avia.	inspection characteristics; inspection/check; installation/checkout; intercom; interphone communication
abbr., earth.sc.	iron constant
abbr., oil	inward collection
mil.	Intercept; interchange
I-C
abbr.	Indo-China
abbr., busin.	iron core
i.c.
abbr.	intermediate circuit; international candle; interrupting capacity; ionization chamber
abbr., auto.	internal combustion
abbr., electric.	iron-core
abbr., radio	internal connection
lat.	in casu
I & C
abbr.	inspected and condemned; inspection and checkout; installation and checkout; installation and construction; instruments and controls; integration and checkout
abbr., commer.	identification and control
abbr., earth.sc.	instrumentation and control
i/c
abbr.	in charge (Vosoni)
abbr., econ.	in charge of
i-C
abbr., el.	ion beam sputtered carbon
i-c
abbr., electric.	iron-core

I/C: 2 phrases in 2 subjects

Abbreviation	1
Energy industry	1