-saving
(forming compound adjs 用以构成复合形容词) that saves (save 1 3) the thing specified 节省的;节约的: Modern houses have many labour-saving devices, eg washing-machines, dishwashers, etc which make housework easier. 现代化的房屋有许多省力的设备（如洗衣机、洗碗机等）. * energy-saving modifications 为节能做的改装.
