의사는 줄리를 앉힌 후에, 최대 호기량을 측정하겠죠 호기량이기도 하고 한번 숨쉴때 내뱉는 공기의 양이기도 하죠.
And the doctor has her sit down, and he takes her peak expiratory flow rate -- which is essentially her exhalation rate, or the amount of air that she can breathe out in one breath.