spreader with vertical rotors

例句：

1. 1. The farmer used a spreaderto plant the seeds in the field.
   农民使用撒播器在田地里播种种子。
2. 2. The new spreader is much moreefficient than the old one.
   新型撒播器比旧的更高效。
3. 3. The farmersuse spreaders to make sure the seedsare evenly distributed across the field.
   农民们使用撒播器确保种子均匀分布在田地上。