"technical maintenance" is a correct and usable phrase in written English.
You can use it when talking about the activities related to the maintenance of technical equipment, such as "The company is conducting technical maintenance on its computer servers."
Google later said the outage had been caused by problems during planned technical maintenance of the site.
The home pages of a mini-blogging site and a video-sharing site said that they would be closed through Saturday for "technical maintenance".
The strikers fill technical, maintenance and service positions, including those of safety technicians and operators of the decontamination plant and wastewater treatment plant.
· Owing to essential technical maintenance, users may be unable to post comments on blogs between midnight on Thursday 7 June and 8am on Friday.
They fill technical, maintenance and service positions, including safety technicians and operators of the decontamination plant and the waste-water treatment plant.
The fuel retailers have cited technical maintenance as the main reason nearly 200 stations have been turning customers away at the pump.
Calculating the cost of RUF included the amount of money paid for the device acquisition and its equipment, and the cost related to both sanitary (systematic and post gesture) and technical maintenances.
LUFTHANSA TECHNIK A.G., Hamburg, Germany, the technical and maintenance arm of the German airline Lufthansa and the world's largest provider of aviation repair and overhaul services, said it had acquired a controlling stake in Hawker Pacific Aerospace, a landing-gear maintenance services company based in Sun Valley, Calif.
The Raytheon and EG&G team will provide technical services, maintenance and engineering for the Nevada Test and Training Range; the Utah Test and Training Range; the Air Force Flight Test Center at Edwards Air Force Base, Calif.; and the Navy's Electronic Combat Range at China Lake, Calif.
For Afghan forces, the helicopters are an essential tool for operational air support and for resupplying remote military outposts, so New Delhi should particularly focus on training the technical and maintenance staff, on supplying the necessary spare parts and on improving the Afghan aircrew's medevac capability.
Wikipedia users may be promoted to administrators, who enjoy additional technical and maintenance capabilities of the website, which requires a public vote among its users.
