premixer

例句：

1. 1.The premixer is used to mix the ingredients before they are added to the final product.
   预混合器用于在将最终产品加入之前混合原料。
2. 2. The premixer was designed to simplify the mixing process for large batches of food.
   预混合器旨在简化大批量食品的混合过程。
3. 3.The premixer has a built-in timer that automatically stops when the desired mixing time is reached.
   预混合器内置计时器，当达到期望的混合时间时会自动停止。