colloidal state

例句：

1. 1. Colloidal particles are tinyand can be seen with a microscope.
   胶体颗粒非常小，可以用显微镜看到。
2. 2.The colloidal state is important inunderstanding the behavior of matter.
   胶体状态对于理解物质的行为非常重要。
3. 3. Colloidal materials are oftenused in cosmetics and foodproducts.
   胶体材料常用于化妆品和食品产品中。