- maintenance of hydraulic metal structure
- maintenance of hydraulic structures
- maintenance of landfill after closure
- maintenance of landscape appearance
- maintenance of landscape facilities
- maintenance of navigation structure
- maintenance of relay protection in power system
- maintenance of release structure
- maintenance of rotary air heater
- Maintenance of social medical insurance system
- maintenance of subgrade
- maintenance of the Three Pagodas of Chongsheng Temple in Dali
- maintenance of urban gas facilities in operation
- maintenance of water conveyance structure
- maintenance of water retaining structure
- maintenance panel
- maintenance period of general anesthesia
- maintenance phase
- maintenance plan
- maintenance policy
- maintenance program
- maintenance program of aircraft
- maintenance project of Guangji Temple ancient buildings in Jinzhou, Liaoning
- maintenance rate
- Maintenance Regulation