filter stoppage

例句：

1. 1. The filter is designed to remove impurities from the water.
   这个过滤器设计用来去除水中的杂质。
2. 2. The scientist used a filter to collect samples for analysis.
   科学家使用一个过滤器来收集样本进行分析。
3. 3.The filter was effective in removing particles larger than 0.5 microns.
   这个过滤器在去除大于0.5微米的颗粒物方面非常有效。