"regular maintenance of" is correct and usable in written English.
You can use it to refer to the act of doing something regularly in order to keep it in good working condition. For example, "The regular maintenance of these machines ensures their longevity."
The fee pays for Naandi's regular maintenance of the plant and the salary of a full-time operator from the village.
Local news reports suggest that senior officials have not allowed proposals to go further because contracts for regular maintenance of roads are a big business in India, worth 350 billion rupees a year.
But the report, which was completed in February 2006, said the transit agency appeared to have neglected regular maintenance of the system of pipes and valves that drain water from the tracks into the city sewer system.
And as tourism supplanted farming and fishing as the town's chief economy, regular maintenance of the terraced hills lagged, an oversight that many now say was a contributing factor to the devastation of Oct 25.
The Web site of The New York Times was off-line for about two hours on Wednesday in what company officials say was a failure during regular maintenance of NYTimes.com and not the result of a cyberattack.
It'll also handle regular maintenance of Waymo's Pacificas, including cleaning and mechanical service.
Additionally, some heat exchangers need regular maintenance because of the corrosive gases in exhaust streams or require specialized materials to withstand the high temperatures, which can be costly and render the plant uneconomic.
The patient was put on a regular maintenance programme of review at 6-month intervals and continued to display an excellent standard of oral hygiene around the implants and to report a high degree of oral functioning using it.
Regular maintenance and upkeep of the units is administered by the villagers through formation of villagers' water committee.
Mark Sarkisian, the firm's director of structural engineering, asserts that with regular maintenance, the Cathedral of Christ the Light has a design life of at least 1,000 years.
However, since its completion in the 1980s, the dam has required regular maintenance involving injections of cement on areas of leakage.
