physico-chemical migration

例句：

1. 1.The migration of species is a complex process that involves both physical and chemical factors.
   物种的迁移是一个复杂的过程，涉及物理和化学因素。
2. 2. The study of physico-chemical migration has important implications for understanding the movement of materials in nature.
   研究物理化学迁移对理解自然界中物质运动具有重要意义。
3. 3.The migration of pollutants from one region to another is a major environmental concern.
   污染物从一个地区迁移到另一个地区是一个重要的环境问题。