A system of railroad equipment designed to ensure safety by monitoring locations of trains and locomotives, providing analysis and reporting, and automation of track warrants and similar orders.

(software) Synonym of nominative type system

An air conditioner where the inside-environment (evaporative) heat exchanger is separated by some distance from the outside-environment (condensing unit) heat exchanger.

(astronomy) A body in the Solar System other than a planet, dwarf planet or natural satellite.

(pathology) Synonym of chronic fatigue syndrome

plural of small Solar System body

plural of split-system air conditioner

A backpack, worn on a space suit, that provides breathable oxygen and removes expelled carbon dioxide

(aviation) An onboard system used to avoid controlled flight into terrain (CFIT).

A test to identify, evaluate and locate partial discharge faults in cable insulation and accessories.