汽車發電機一直發電，如果不用就會浪費？工程師已經找到破解辦法（The car generator has been generating electricity, if it is not used

提到汽車的發電機，可以說對其並不陌生。因為隨著民眾的生活條件越來越好之後，基本上家家戶戶都有汽車。可是很多人不明白，汽車啟動之後，發電機就會一直工作，如果汽車不需要發電機供電，是否會存在過度浪費的情況？（When it comes to the generator of a car, it can be said that it is no stranger to it. Because as people's living conditions get better and better, basically every household has a car. But many people don't understand that after the car starts, the generator will work all the time. If the car does not need the generator to supply power, will there be excessive waste?）