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 .

尽管早产组的婴儿随着生长，肺功能的增强与足月组的婴儿相似，但在第一和第二周岁的时候，早产组和足月组的婴儿相比用力呼气流量和正常的肺活量持续减少。