LOW-SIDE UNDER VOLTAGE DETECTOR低端欠压检测器
HIGH-SIDE UNDER VOLTAGE DETECTOR高端欠压检测器
同义词：bottomundersideundersurface
N-COUNT（可数名词） The underside of something is the part of it which normally faces towards the ground. 下面; 底部
...the underside of the car.
…汽车的底部。