rheoelectroencephalograph

例句：

1. 1.The rheoelectroencephalograph was used to monitor the patient's brain activity during surgery.
   脑电图仪被用来监测患者在手术期间的脑部活动。
2. 2.The study used a rheoelectroencephalograph to record the patient's brain waves during sleep.
   研究使用了脑电图仪来记录患者睡眠期间的脑波。
3. 3. The results of the rheoelectroencephalograph showed that the patient had significant changes in their brain activity.
   脑电图仪的结果显示，患者的大脑活动发生了显著变化。