短语词组短語expiratory center [毉]呼氣中樞;呼吸中樞;繙譯expiratory phase 呼氣相expiratory force 呼氣力量expiratory centre 呼氣中樞expiratory current 呼出氣流expiratory flow 呼氣流速end expiratory 呼氣末期的expiratory load 呼氣阻力負荷expiratory muscles 呼肌 返回 expiratory