capillary bulb

例句：

1. 1. The doctor examinedthe patient's capillary bulbsand found no signs of infection.
   医生检查了患者的毛细血管球，没有发现感染的迹象。
2. 2.The scientist discovered a new type of capillary bulb that could be used in medicalresearch.
   科学家发现了一种新的毛细血管球，可以用于医学研究。
3. 3. The plant's capillarybulbs are responsible for transporting waterand nutrients throughout the plant.
   植物的毛细血管球负责将水分和养分输送到植物的各个部位。