脱粒机

例句：

1. 1. The farmer used a threshing machine to separate the grain from the husks.
   农民使用脱粒机将谷物与壳分离。
2. 2. The threshing machine was designed to efficiently remove the outer layers of the wheat.
   脱粒机设计用来高效地去除小麦的外层。
3. 3. The threshing machine is essential for processing large quantities of grain.
   脱粒机对于处理大量谷物至关重要。