frost removal timer

例句：

1. 1.This frost remover timer is very useful for removing ice from windows and doors.
   这个除霜计时器对于从窗户和门上去除冰非常有帮助。
2. 2.The farmer used a frost remover timer to prevent crops from freezing during the winter.
   农民使用一个除霜计时器来防止作物在冬天冻结。
3. 3. The engineer designed a frost remover timer that could automatically shut off when the temperature reached a certain level.
   工程师设计了一个自动关闭的除霜计时器，当温度达到一定水平时会自动关闭。