uriniferous tubule

例句：

1. 1. The soil is rich inminerals and nutrients, making it ideal forgrowing crops.
   土壤富含矿物质和养分，非常适合种植作物。
2. 2. The plant's rootsare deeply embedded in the earth, indicatingits uriniferous nature.
   这种植物的根系深深地扎在土里，表明它富含铁质。
3. 3. The iron-rich soil has been a source ofgreat wealth for generations.
   富含铁质的土壤一直是几代人财富的来源。