合同还包括了该雷达18年使用周期内的支持和维护，确保该雷达与有关基础设施在使用周期内至少拥有98%的作战能力。
It also includes the sustainment and the maintenance of the installation for a period of 18 years, with guaranteed levels of operational availability of 98% for the radar and its infrastructure.
数十年来，程序员们使用模型-视图-控制器简化了代码结构，并使得维护任务更加容易。
Programmers have simplified their code structure and eased maintenance tasks with Model-View-Controller for decades.
所有部件均经过特殊防氧化处理，不生锈、耐化学物质腐蚀，接头为坚实的喷丸铸件，产品使用寿命高达30年以上，无须维护。
All parts of the ladderspan are anti-oxygenation, with interlocks made by casting of spray pellet, which provides itself a lifespan of 30 years more.
针对汉川电厂多组UPS电池在不到5年的使用时间里，连续失效报废所造成的巨大损失和惨痛教训，探讨了UPS蓄电池在运行和维护中的科学方法，并强调对免维电池的正确认识；
In the light of heavy loss and bitter lesson from the lose efficiency of many UPS battery being less than 5 years service in Hanchuan Power Plant, its operation and maintenance method was discussed.
公司郑重向广大客户保证：凡我公司出厂的产品，在正常使用的情况下，一年保修，终身维护。
Company solemn assurance to our customers: the company manufactured products, used in the normal circumstances, one year warranty, maintenance of life.
这样的建筑需要频繁维护且经常遭受损坏，平均使用寿命仅十年。
Such buildings require regular maintenance, are often prone to damage and last on average only 10 years.
这样的建筑需要频繁维护且经常遭受损坏，平均使用寿命仅十年。
Such buildings require regular maintenance, are often prone to damage and last on average only 10 years.
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