roll seed separator

例句：

1. 1. The farmeruses a roll seed separator to separatethe seeds from the chaff.
   农民使用种子滚动分离器来将种子与麦壳分开。
2. 2. The machine is designed toquickly and easily separate the seeds from thechaff.
   这台机器设计用来快速而容易地将种子与麦壳分开。
3. 3. The farmer has invested in a newroll seed separator, which will greatlyimprove his crop yield.
   农民投资了一台新的种子滚动分离器，这将大大提升他的作物产量。