subsieve

例句：

1. 1. The scientist used a subsieve to test the water for contaminants.
   科学家使用一个筛子来测试水是否有污染物。
2. 2. The engineer subsieved the soil samples to determine their quality.
   工程师用筛子筛选土壤样本以确定其质量。
3. 3. The farmers subsieved the grains to remove any foreign particles.
   农民们用筛子筛选谷物以去除任何外来颗粒。