whatman

例句：

1. 1. The Whatman filter is used to remove impurities from water.
   Whatman滤纸用于从水中去除杂质。
2. 2.We use Whatman paper for our experiments because it's easy to clean and dry.
   我们使用Whatman纸进行实验，因为它容易清洗和干燥。
3. 3.The Whatman filter is a crucial tool in laboratory work.
   Whatman滤纸是实验室工作中不可或缺的工具。