n.脑电图仪
Scientists can detect when someone is dreaming by using an electroencephalograph, a machine that registers different brain waves in a sleeping individual. 科学家能够借助一种脑电图仪探究人们的梦境，这种仪器可以记录一个睡眠个体的不同脑电波。
n.[医]脑电图学；脑电描记法
