Forced expiratory volume in 3 seconds to forced vital capacity ratio .
三秒钟用力呼气量与用力肺活量比值。
Expiratory positive airway pressure ; epap .
吐气期气道正压术。
Inspiratory and expiratory sounds are about equal in duration , and a silent gap may or may not separate them .
吸入和呼出声具有相同的持续时间，它们之间存在或不存在一个安静间隔。
The effect of positive end-expiratory pressure level on peak expiratory flow during manual hyperinflation .
手动膨胀肺时呼气末正压水平对呼气流速峰值的影响。
The preterm group continued to have decreased forced expiratory flows and normal forced vital capacities in the first and second years of life compared with the full-term group , even though their increases in lung function with growth were similar to those of full-term infants .
