noun
maintenance; upkeep
Refers to the act of keeping equipment, facilities, or systems in good working order through regular inspection and repair. Often used in technical, industrial, or official contexts.
工場では機械の保修が欠かせない。
Maintenance of machinery is essential in the factory.
保修契約を結んで、定期的に点検してもらっている。
We have a maintenance contract and get regular inspections.