In the blue bar at the bottom of the graph, it shows what her peak expiratory flow rate, what her exhalation rate or lung health, should be based on her age, gender and height.
在图示下方的蓝色方块， 显示了她的呼气流量率峰值， 她的析出率或者肺部健康，应该是 根据她的年龄，性别和身高