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TCG abbr.
abbr.	Technical Chamber of Greece; The Crap Game; total combustible gases (Yuliya13); Trusted Computing Group (organization, DRM, AMD, HP, IBM, Intel, MS); tune-controlled gain; time-controlled gain
abbr., avia.	Tacheng, Mainland China; test control group; tooling coordination group
abbr., earth.sc.	time control gain
abbr., el.	telephone communication group; television calibration generator; test call generator; trunk control group
abbr., IT	Trusted Computer Group
abbr., met.	time-corrected gain
abbr., mil.	Tactical Control Group; Technology Coordination Group; Threat Coordinating Group; Topical Classification Guide
abbr., mil., air.def.	time control generator
abbr., monk.	Tradable Card Game; Trading Card Games
abbr., nautic.	transverse centre of gravity (Lesya1986)
abbr., oil	time controlled gain; transverse center of gravity; transverse position of center of gravity; tune controlled gain
abbr., police	Tasking and Coordinating Group
abbr., railw.	Tucson Cornelia and Gila Bend Railroad Company
abbr., scottish	Track Control Group
abbr., sport.	Tennessee Contest Group; Trading Card Game
abbr., telecom.	time code generator (key2russia)
mil.	tactical control group; technical coordination group; telecommunications group; theater communications group; track-command guidance
tech.	time corrected gain; track command guidance; transponder control group
Tcg abbr.
abbr., earth.sc.	tertiary conglomerate
TCGp abbr.
abbr.	tactical control group
tcg abbr.
O&G. tech.	through-conduit gate (valve Meirzhan Mukhambetov)