maintenancefree

基本解釋

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"具有自動(dòng)清潔;免維護(hù);污水過濾等多功能萬能清潔器;它還能大大延長你水族箱里的魚的壽命.
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.
采用本試驗(yàn)合金鑄板,延長電池的使用壽命,達(dá)到了免維護(hù)電池的要求,每年可為生產(chǎn)企業(yè)增加可觀的經(jīng)濟(jì)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?yàn)槌Ｒ?guī)橋臺(tái)涉及維修接縫和軸承，因而費(fèi)用高和有交通干擾。而整體橋臺(tái)設(shè)計(jì)則達(dá)到最低維護(hù)要求，下部結(jié)構(gòu)幾乎都不需要維護(hù)。
maintenancefree operation
不需維護(hù)的運(yùn)行