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- maintenance free operation period 无维修工作期
- Analysis of Maintenance Free Operating Period 免维修使用期分析
- New Concept of Aviation Maintenance: Maintenance Free Operating Period 航空维修的新概念:无维修使用期
- Free operation of the country and issued with free textbooks. 免费作业本与国家免费教科书一同下发。
- Improvement on power supplying quality, reliability and automatization requires that the VCB should have more favorable function on frequent operation, maintenance free and reliability. 供电质量、可靠性以及自动化技术的进一步提高，对真空断路器操作频繁、可靠性和免维护性能的要求更高。
- Supply spares on time and guarantee customer trouble free operation of machine. 八、保证配件的及时供应，让您在使用设备时无后顾之忧。
- Constructed of 304 stainless steel with 316 stainless hardware, the LSC Rescue Seat is virtually maintenance free. 制造由304不锈钢钢索加上316钢索硬件,LSC营救位子建造实际上免维修。
- Free operating systems could not be installed. 免费的操作系统不能被安装。
- The inserting pin with fixed structure which does not need oiling is pollution free and maintenance free. 插针采用固定构造，完全不用加油，无污染，无维护成本。
- It is a maintenance free analyzer as its newest design of the precision meter pump. 使用隔膜式精密计量泵---计量精确、免维护。
- The Rescue Basket is constructed almost entirely of welded type 304 stainless steel, making it virtually maintenance free. 这个营救篮由304类型焊接不锈钢建造,使它免维修。
- HYDAC back-flush filters are designed for continuous and maintenance free filtration in all sectors of industry for water filtration. HYDAC后台刷新过滤器是设计用于连续和维护水过滤所有的行业免费过滤。
- So far, 4 large networks of domestic swim operation business divides Netease outside, all sortie is free operation. 至此，国内四大网游运营商除网易外，均涉足免费运营。
- Cataract patients get free operations to correct the problem. 白内障患者获得免费手术解决问题。
- It features undecomposable, deformation free, fade resistant, insect damage resistant, god fireproof performance, crack resistant, and maintenance free etc. 从事新型建筑材料、室内外装饰材料生产销售。
- The Government does not give direct subsidies to the local agriculture and fisheries industries or attempt to protect them from the free operation of market forces. 政府没有向本地渔农业提供直接资助，也没有试图保护业界免受市场力量影响。
- Finally from ProTek are these hardened clutch bells, which are precision cut, hardened and anodized black to give you the best maintenance free performance. 最后由这些蛋白质硬化离合器的钟声，这是精密切割，硬化和阳极黑色给您提供最好的免维护性能。
- Relaxing statutory restrictions on security of tenure with a view to resuming the free operation of the private rental market. 放宽法例对私人楼宇的租住权管制,让私人租务市场恢复自由运作。
- Use multiple seizing wires as belt core to raise wire bending fatigue strength greatly, sheathed good weatherproof rubber to have realized maintenance free fuction. 用多根细钢丝绳作为带芯,大幅度提高了钢丝绳弯曲疲劳强度。外包耐候性优良的橡胶，实现了免维护功能。
- However well we explained it, intervention in the free operation of a market will always be regarded with scepticism, or worse, with hostility. 然而,入市决定所引起的争议至今仍然存在:无论我们怎样清楚解释,毅然介入自由市场的运作,仍是受到质疑甚至反对。
