seed colter

例句：

1. 1. The farmer uses a seed colter to sort the seeds before planting.
   农民使用种子筛选器在播种前对种子进行筛选。
2. 2. The scientist developed a new seed colter that can quickly identify disease-resistant varieties.
   科学家开发了一种新种子筛选器，可以迅速识别抗病品种。
3. 3. The farmers use seed colters to test the quality of the seeds before sowing them in the fields.
   农民们使用种子筛选器在播种前测试种子的质量。