villus length

• 绒毛

villus length的用法和样例：

例句

1. A chorionic villus is a minute vascular projection on the fetal chorion.
   绒膜绒毛是胎儿绒毛膜上的一种微小的血管凸出物。
2. Each villus is richly supplied with blood which passes through a network of tiny tubes called capillaries.
   血液流过称为微血管的毛细血管网，丰富地供应给每一根绒毛。