colloidal particle

例句：

1. 1.Colloidal particles are tiny enough to pass through a microscope.
   胶体粒子足够小，可以通过显微镜。
2. 2. The colloidal particles in the solution interact with each other.
   溶液中的胶体粒子相互相互作用。
3. 3.Colloidal particles have been studied for their potential applications in drug delivery.
   胶体粒子已被研究用于药物递送的潜在应用。