vortex sieve

例句：

1. 1. The vortex sieve is used to separate particles based on their size.
   涡旋筛用于根据粒子大小分离它们。
2. 2. In this experiment, the vortex sieve was used to separate oil from water.
   在这个实验中，涡旋筛被用来从水中分离出油。
3. 3. The vortex sieve was designed to be easy to clean and maintain.
   涡旋筛的设计是为了易于清洁和维护。