免维护服务
maintenance free───[化] 不需维修的
maintenance service───维护服务；技术维修，技术维护；维修业务，技术维护
service free───免费服务
free service───[经]免费服务
maintenance───n.维护，维修；保持；生活费用
maintenance mode───维护模式
maintenance costs───维修费用；维护费用；维修费用，养护费用
vehicle maintenance───汽车维护，车辆保养
maintenance manual───维护手册；维护保养手册
You can also opt to be notified about important WebSphere maintenance downloads by registering an email address with IBM's free mySupport service.───还可以选择注册 IBM 免费 mySupport 服务来获得关于重要 WebSphere 维护下载的通知。
High precision dynamic balancing machine has the characteristics of low noise, high efficiency, long service life, and fully enclosed in high performance grease, life-long maintenance free.───高精度动平衡机具有噪音低、高效率、使用寿命长等特点，且全封闭内加高性能润滑脂，终生免维护。
Germany sunshine colloid and maintenance-free battery is the ancestor of gel battery leader in the world, with the excellent service, quickly occupied the domestic market.───德国阳光免维护胶体电池是世界上胶体电池的鼻祖领导者，凭借优异的服务，迅速占领国内市场。
The sealed spherical roller bearings are protected against both particle and moisture contamination, enabling them to offer effective performance over long, virtually maintenance-free service lives.
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