variable refrigerant volume造句

Daikin is the inventor of variable refrigerant volume systems ( or VRV by Daikin air conditioning, other manufacturers remarked this as VRF ) and an innovator in the split system air conditioning market.
The building is equipped with a building management system and security system, fire protection safety and CCTV surveillance, ample provision for entrance cables of telephone lines, space provisions for unit owner-supplied variable refrigerant volume ( VRV ) airconditioning systems, and individual metering systems for effective operation and maintenance.
It's difficult to find variable refrigerant volume in a sentence. 用variable refrigerant volume造句挺难的