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一種就是雨刮器其實可以是用來判斷左車輪的位置。當我們開車的時候，很難掌握車輪的實際位置，尤其是對那些生活來說，其實雨刮器是一個很好的幫手。在汽車的左側上面雨刮器上有一個突起的結點，車主的視線看到這個結點和地面某一個物體重合的時候，就說明汽車的左車輪將要從這個物體上碾過。只要掌握了這一點，不管是在城市道路中哪邊靠車，都可以預防壓線或者是被刮蹭的現象。

擦拭器不工作時的條件是什么：（1）條紋條紋：擦拭條不與玻璃完全接觸;不適當的手臂壓力或上部結構損壞，甚至不正確的雨刷片都會造成這種現象; 2）有條紋的條紋：使用刮水器將油性薄膜分布在擋風玻璃上，通常是由于灰塵或汽車蠟附著在玻璃上;雨刷條被汽車蠟和油漬污染; （3））細水現象：刮水器擦拭擋風玻璃時，玻璃表面仍有小水滴。這種現象是由汽車蠟，油污或硅化物粘在擋風玻璃，橡膠條或橡膠條本身上的質量引起的。 （4）“咔噠”或刺耳的噪音：刮水器不規則刮擦時，主要是由于鋼帶的磨損，手臂和支架的損壞以及鋼帶的老化變形造成的。在沒有潤滑的情況下，當刮水器掃過玻璃時，也會產生摩擦聲。

Do not forget the wiper blade for washing the car: wipe the wiper strip with a glass cleaning solution when washing the car, wipe it clean and then wash it with water, but it should be noted that the cleaning agent used should not contain ammonia, which is the cause of the hardening of the strip. In general, soap and disinfectant used in the home contain ammonia. Avoid prolonged exposure: Under continuous high temperature, the strip on the wiper blade may deform or lose its elasticity. If the owner intends to park the car for a few days outdoors, it is recommended to stop in the shade or buy a good suit for the car. It not only protects the wiper blades, but also does not have to worry about the body being surrounded by dust, leaves and dirt. Use qualified glass water: Many people use tap water as wiper water. This is not right. Special glass water has the function of cleaning glass and protecting the wiper. The qualified glass water can improve the cleaning effect and protect the life of the wiper.xx