maintenancefree

常见例句

The Aquascum 2003 is an allpurpose,selfcleaning,maintenancefree,salt water purifier that is guaranteed to extend the life of your aquarium fish.
"水得清2003"具有自动清洁;免维护;污水过滤等多功能万能清洁器;它还能大大延长你水族箱里的鱼的寿命.
This test,by using cast alloy plates,extends battery life,meets the requirements of maintenancefree batteries,and increases considerable economic benefits for the production of enterprises every year.
采用本试验合金铸板,延长电池的使用寿命,达到了免维护电池的要求,每年可为生产企业增加可观的经济效益。
Since repair of joints and bearings on traditional bridges is costly and disruptive to traffic, a goal of integral bridge design is reduced maintenance, with nearly maintenancefree substructures.
因为常规桥台涉及维修接缝和轴承，因而费用高和有交通干扰。而整体桥台设计则达到最低维护要求，下部结构几乎都不需要维护。
maintenancefree operation
不需维护的运行