rCBF

例句：

1. 1. The researchers found that the rCBF in the brain was significantly reduced during sleep.
   研究人员发现，大脑的rCBF在睡眠期间显著减少。
2. 2. The patient's rCBF was monitored to determine the effectiveness of the treatment.
   患者的大脑rCBF被监测以确定治疗的有效性。
3. 3. The study focused on the relationship between rCBF and cognitive function.
   该研究关注了rCBF与认知功能之间的关系。