fog repeater

例句：

1. 1. The fog repeater is used to clear the air in winter.
   雾气发生器用于冬季清除空气中的雾气。
2. 2. The fog repeater was a popular tool for farmers during the early 20th century.
   雾气发生器在20世纪初是农民们非常受欢迎的工具。
3. 3. The fog repeater helps to prevent accidents caused by poor visibility.
   雾气发生器有助于防止因能见度差引起的事故。