abbr.	CCL	custom clearance
		abbr.	Ccr	creatine clearance
		abbr. comp.	CCR	Channel Command Register
		abbr. tech.	CCR	Counter Current Regeneration
		abbr. tech.	CD	Capacitor Diode
		abbr.	cd	candle
		abbr. comp.	CD-MIDI	Compact Disk - MIDI
		abbr. comp.	CD-PROM	Compact Disc Programmed Read-Only Memory
		abbr.	CD-WORM	CD Write Once, Read Many
		abbr. med.	CD4	helper-inducer T cells
		abbr. med.	CD8	suppressor-cytotoxic T cells
		abbr.	CDA	Civil Defence Administration
		abbr.	CDD	Certificate of Disability Discharge
		abbr.	CDDL	Common Data Definition Language
		abbr.	CDDV	Common Data Dictionary Verificator
		abbr.	CDE	Compact Disc Erasable
		abbr.	CDEV	Control Panel Device
		abbr. phys.	CDF	Chromatographic Data File
		abbr. phys.	CDF	Collider Detector at Fermilab
		abbr.	CDFM	Compact Disk File Manager
		abbr. el.	CDIL	Ceramic Dual-In-Line package
		abbr. comp.	CDK	Control Development Kit
		abbr. comp.	CDK	Cyberspace Development Kit
		abbr.	cdl	candle
		abbr.	cdl-ft	candle-foot
		abbr. comp.	CDP	Certificate in Data Processing
		abbr. file.ext.	CDR	Vector graphics format (CorelDraw)
		abbr. phys.	CDR	Carbon dioxide - Deuterium oxide Reactor
		abbr. comp.	CDROM	Compact Disc Read-Only Memory
		abbr.	CDROM XA	CD-ROM extended architecture
		abbr. comp.	CDRW	Compact Disc ReWritable
		abbr. comp.	CDS	Colour Display System
		abbr. file.ext.	CDX	Compound index file (FoxPro)
		abbr. file.ext.	CEL	Picture (3DS)
		abbr.	CEMF	counter-electromotive force
		lat.	Cen	Centaurus (Центавр)
		abbr. comp.	CEN	Comite' European de Normalisation
		abbr. comp.	CENELEC	Comite' European de Normalisation Electrotechnique
		lat.	Cep	Cepheus (Цефей)
		abbr.	CEPT	Conference of European Postal and Telecommunication Administrations
		abbr. el.	CERDIP	Ceramic DIP
		abbr. comp.	CERT	Carnegie Mellon Software Engineering Institute
		abbr. comp.	CERT	Character Error Rate Test
		abbr. tech.	CERT	Certification Test System
		abbr.	cert.	certificated
		lat.	Cet	Cetus (the Whale, Кит)
		abbr.	CEX	Communications Executive
		abbr. med.	CF	complement fixation
		abbr.	CF	carrier-free
		abbr.	Cf	cooled in furnace
		abbr.	cf.	compare
		astr.	CfA	Harward-Smithsonian Centre for Astrophysics
		abbr. cryptogr.	CFB	Cipher FeedBack
		abbr. cryptogr.	CFB	Code FeedBack
		abbr. comp.	CFG	Context-Free Grammar
		abbr. file.ext.	CFG	Configuration file
		abbr.	CFI	crystal frequency indicator
		abbr.	Cfo	cooled in open furnace
		abbr.	CGA	Colour Graphic Adapter
		abbr.	cghs	charges
		abbr.	CGI	Command Gateway Interface
		abbr. astr.	CGRO	Compton Gamma Ray Observatory
		abbr.	CGS	centimetre-gram-second
		abbr.	CGS	centimetre-gram-second system
		abbr.	CGSE	centimetre-gram-second electrostatic system
		abbr.	CGSM	centimetre-gram-second electromagnetic system
		abbr. file.ext.	CH	Clipper language header (CA Clipper)
		abbr.	ch.pd.	charges paid
		abbr.	ch.ppd.	charges prepaid
		abbr. comp.	CHARGEN	Character Generator Protocol
		abbr.	chem.	chemistry
		abbr.	chgd	charged
		abbr. file.ext.	CHI	ChiWriter Document (ChiWriter, Chiview)
		abbr. med.	CHPP	continuous hyperthermic peritoneal perfusion
		abbr. file.ext.	CHR	Borland Stroked font (BP, BC)
		abbr.	CHS	Cylinder-Head-Sector
		abbr. file.ext.	CHZ	Archive format (CHARC archiver)
		abbr. comp.	CI	Colour Index
		abbr. comp.	CI	Cumulative Index
		abbr. comp.	CI	Current-Awareness Information
		abbr. tech.	CI	Clearing Index
		abbr. tech.	CI	Contour Interval
		abbr.	CI	Cubic Inches
		abbr. tech.	CIA	Cast Iron Alloy
		abbr.	CIFC	Centre for Interfirm Comparisons
		abbr. comp.	CIO	Communications Input/Output
		abbr.	CIP	Carriage and Insurance Paid to ...
		abbr. comp.	CIPSO	Commercial Internet Protocol Security Option
		lat.	Cir	Circinus (the Compasses, Циркуль)
		abbr.	cir bkr	circuit breaker
		abbr.	cir m	circular mil
		abbr.	circm	circumference
		abbr.	circt	circuit
		abbr.	CISC	Computer Instruction Set Computing
		abbr.	ck	check US
		abbr. med.	CK-MB	creatine kinase, myocardial band
		abbr.	Cl	chloride
		med.	cl	clear
		abbr.	cl	call
		abbr.	cl	carload

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