threshing machine造句

1、The threshing machine in micro-blog before the rise in what?
打谷机在微博兴起之前的年代在哪混？

2、The roller of the threshing machine is a disk chuck open type roller.
脱粒机构的滚筒为花盘开式滚筒。

3、This threshing machine can greatly raise the efficiency of labor.
粒机可以大大地提高劳动效率。