microtransfusion

例句：

1. 1. The patient's condition improved significantly after the microtransfusion.
   在进行了微量输血后，患者的病情显著改善。
2. 2. During surgery, doctors often use microtransfusion to deliver drugs directly into the bloodstream.
   在手术期间，医生经常使用微量输血直接将药物输送到血液中。
3. 3. The microtransfusion was a life-saving procedure for the patient.
   微量输血对患者来说是救命的手术。