如何正确使用双速电动刮水器为了驾驶员在雨、雪天气里能有良好的视线，确保行车安全，在一些汽车上装有双速电动刮水器。为了延长双速电动刮水器的使用寿命，笔者认为在使用中应特别注意以下几点：ａ．使用前应核对电动机的额定电压与汽车电源电压是否相符。若不相符，就... How to correctly use the two-speed electric wipers In order for the driver to have a good view in the rain and snow, to ensure traffic safety, some cars are equipped with a two-speed electric wiper. In order to extend the service life of two-speed electric wipers, I believe that in use should pay special attention to the following points: a. Before use should check the motor rated voltage and the car power supply voltage is consistent. If not, on ...