micro pipe

例句：

1. 1.The micro pipe is used to deliver small amounts of fluids.
   微型管道用于输送小量液体。
2. 2.The micro pipe was inserted into the patient's bloodstream.
   微型管道被插入患者的血液循环中。
3. 3. The micro pipe was used to monitor the patient's vital signs.
   微型管道被用来监测病人的体征。