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Customer relationship management
Customer relationship management (CRM), also known as client relationship management, is the process and software systems businesses use to build profitable customer relationships, spanning operational, analytical, and collaborative types.
Customer-premises equipment
Customer-premises equipment (CPE), also called customer-provided equipment, is telecommunications equipment at a subscriber's premises, on the customer's side of the demarcation point, including modems, routers, and telephones.
Cut and cover
Cut and cover is a tunnel construction method in which a trench is excavated from the surface, the tunnel is built inside it, and the trench is backfilled.
Cut size
Cut size, usually written d₅₀, is the particle diameter at which a size-separation device sends half the material to its coarse product and half to its fine product.
Cut-and-cover tunneling
Cut-and-cover tunneling is a construction method that builds a tunnel in a trench excavated from the surface, then backfills it, economical at shallow depths of about 10 to 12 meters.
Cut, copy, and paste
Cut, copy, and paste are user commands that transfer data between documents or applications through a system clipboard. Cut deletes the selection, copy leaves it unchanged, and paste inserts clipboard content.
Cutaway drawing
A cutaway drawing, also called a cutaway view, is a technical illustration that removes part of an object's exterior to show its interior, closely associated with aviation magazines.
Cutback asphalt
Cutback asphalt is asphalt cement liquefied with petroleum solvents, which evaporate after application; once the standard liquid asphalt for road paving, it has largely been displaced by emulsions.
Cutkosky grasp taxonomy
The Cutkosky grasp taxonomy is a 1989 hierarchical classification of 16 human grasps, split into power and precision types, built by Mark R. Cutkosky at Stanford.
Cutlass
A cutlass, historically also called a curtal axe or cuttoe, is a short, broad-bladed, single-edged sword with a large hand guard, best known as the standard close-quarters weapon of enlisted sailors.
CutMix
CutMix is a data augmentation method for image classification that pastes a rectangular patch from one training image onto another and mixes the two labels in proportion to the pasted area.
Cutter (boat)
A cutter is a small sailing vessel with one mast, a bowsprit, and two or more headsails; the word also names ship's boats and large US Coast Guard vessels.
Cutter suction dredger
A cutter suction dredger (CSD) is a stationary dredging vessel that loosens the seabed with a rotating cutter head, pumping the material through a pipeline for reclamation, ports, and waterways.
Cutterhead (tunnel boring machine)
A cutterhead is the rotating front part of a tunnel boring machine that carries cutting tools against the tunnel face to break rock and soil.
Cutting board
A cutting board is a flat surface, usually wood, plastic, or bamboo, on which food is cut, protecting countertops and requiring separate boards for raw meat and produce.
Cutting fluid
Cutting fluid, also known as cutting oil or metalworking fluid, is a liquid applied in machining and grinding to cool and lubricate, flush away chips, and prevent corrosion.
Cutting speed
Cutting speed is the relative linear velocity between a tool's cutting edge and the workpiece surface in machining, and the parameter most tied to tool life.
Cutting test
A cutting test is a controlled machining experiment measuring tool life and cutting forces under specified conditions, the standard basis for comparing tools, materials, and cutting fluids in manufacturing.
Cutting tool (machining)
A cutting tool is the hardened implement, solid or a replaceable insert, whose edge severs material as chips in machining operations such as turning, milling, and drilling.
Cutty Sark
Cutty Sark is a British clipper ship launched in 1869 for the China tea trade, the world's sole surviving tea clipper, preserved at Greenwich since 1954.
Cuyabeno Oil and Gas Field
The Cuyabeno Oil and Gas Field is an operating onshore oil field in Block 58 of Ecuador's Oriente basin, in Sucumbíos province, discovered in 1972 and wholly owned by EP Petroecuador.
CV32E40P
CV32E40P is an open-source 32-bit RISC-V processor core maintained by the OpenHW Group, based on the PULP project's RI5CY core and aimed at embedded applications.
CVAT
CVAT (Computer Vision Annotation Tool) is an open-source web annotation platform for image, video, audio, and 3D data, started at Intel in 2017 on VATIC, released on GitHub June 2018, now run by CVAT.ai with Community, Online, and Enterprise editions.
CVR Energy
CVR Energy is a Sugar Land, Texas holding company trading on the NYSE as CVI, engaged in petroleum refining and nitrogen fertilizer manufacturing through CVR Refining and CVR Partners.
CWDM
CWDM (coarse wavelength division multiplexing) carries several optical channels on one fiber using 20 nm spacing, cutting costs by using uncooled lasers in metro networks.
Cyanate ester
A cyanate ester is a thermosetting monomer or resin whose cured polycyanurate networks combine high glass transition temperature, low dielectric loss, and low moisture absorption, serving aerospace composites, radomes, and microelectronics.
Cyanoacrylate
Cyanoacrylate, the adhesive family sold as super glue and Crazy Glue, cures in seconds through moisture-triggered polymerization and is also used in surgical adhesives and forensic fingerprinting.
CyanogenMod
CyanogenMod was a community-developed custom firmware, or ROM, for Android smartphones and tablets, created by Steve Kondik in 2009; it was discontinued in December 2016 and forked as LineageOS.
Cyanotype
Cyanotype is a photographic printing process producing Prussian blue images, invented by Sir John Herschel in 1842 and used for the first photographically illustrated book.
Cyber Essentials
Cyber Essentials is a UK government-backed cyber security certification scheme launched in 2014, setting out five technical controls and two certification levels, Cyber Essentials and Cyber Essentials Plus.