shellfish purification

例句：

1. 1. The shellfish purification process involves removing contaminantsfrom the water.
   海鲜净化过程涉及从水中去除污染物。
2. 2. The company's commitment toenvironmental sustainability is evident in their shellfishpurification efforts.
   该公司对环境可持续性的承诺体现在他们的海鲜净化努力上。
3. 3. The shellfish purification system has been shown tobe effective in reducing marine pollution.
   研究表明，海鲜净化系统能有效减少海洋污染。