1) Airliner types 2) Data collection system 3) Some passenger planes 4) Types of electric current 
Acronym for Desktop Colour Separation. Originally introduced by Quark, it splits an image into five separate files: a low-res preview plus the four process channels, CMYK. Uses - bureaus can supply a designer with the low-res image only, at about 10% the total file size, these files are imported as FPO (For Position Only) into the layout. The FPOs ...
Digital Cross Connected, DACS
Data Collection System + Data Control System + Desktop Color Separation + Distributed Control System
Defence Communications System
(Digital Cinema Sound) A feature that enables you to experience digital surround effects at home. DCS re-arranges the surround sound with its Cinema Studio Modes or Virtual 3D modes to re-create the high-quality surround sound in which movies are intended to be experienced.
Disturbance Control Standard
acronym: data collection system
(CONTROL SYSTEMS GLOSSARY) A Distributed Control System is designed to have a series of decentralised control centres which have some degree of autonomy, but are still integrated into a whole system (except in an emergency shutdown). The centre has hierarchical control over the rest, but most control takes place away from the centre.(NETWORK GLOSSARY) Distributed control system.
Detective Chief Superintendent
When bubbles of gas (often nitrogen) get trapped inside of the body. There are varying levels of severity, and can be caused by swimming to the surface too quickly.