根冠细胞层

例句：

1. 1. The roots of the plant are covered by a layer of cells that protect them from external damage.
   植物的根部被一层细胞覆盖，保护它们免受外部损伤。
2. 2. In the root cap cell layer, there are specialized cells that play a crucial role in the plant's growth anddevelopment.
   在根冠细胞层中，有特殊的细胞，它们在植物的生长和发育中起着至关重要的作用。
3. 3.The root cap cell layer is also important for nutrient absorption and distribution within the plant.
   根冠细胞层对于植物内部营养物质的吸收和分配也非常重要。