catchment basin - chemical sewage treatment
- central air-handling plant
- central axis
- central boiler house
- central boiler plant
- central business district
- central collision
- central core
- central core wall
- central court
- central crack
- central exchange
- central fan electric heating system
- central fan heating
- central fan system
- central free diaphragm
- central hall
- central heat
- central heat storage tank
- central heating
- central heating boiler
- central heating plant
- central heating station
- central hole
- central hot water supply system
- central humidifier
- central impact
- central loading core of a building
- central lubrication
- central meridian
- central mixing method
- central mixing plant
- central moment
- central moment of inertia
- central perspective
- central plan
- central plant
- central plant air conditioning system
- central point load
- central refrigerating plant
- central reservation