1. 电动砂光机：Electric resistance 电阻 | Electric sander 电动砂光机 | Electric speed checker 电动减速器
2. 平板砂光机：rotary hammer 电锤 | electric sander 平板砂光机 | belt sander 砂带机
noun
1. a power tool used for sanding wood
an endless loop of sandpaper is moved at high speed by an electric motor
Synonym: drum sander sander smoother