wiper

名词 wiper:

1. a worker who wipes
2. contact consisting of a conducting arm that rotates over a series of fixed contacts and comes to rest on an outlet
   同义词：wiper arm, contact arm
3. a mechanical device that cleans the windshield
   同义词：windshield wiper, windscreen wiper, wiper blade

1. A cam that activates another part; a wiper.
   凸轮启动另一部分的凸轮; 挺杆

wip.er

n.（名词）
One that wipes.
擦试的人
Something, such as a towel, used for wiping.
抹布：用于擦拭的东西，如毛巾
A device designed for wiping, as on an automobile windshield.
雨刷：汽车挡风玻璃上用来擦拭的装置
A projecting cam, as on a rotating shaft, that activates another machine part.
凸轮：如转轴上突出的挺杆，使另一个机器零件活动
Electricity A movable electrical contact, as in a rheostat.
【电学】 接触电刷：变阻器等内部的活动电接触器