1.the short weak cry of a young bird
2.a secret look
1.look furtively;
He peeped at the woman through the window
2.cause to appear;
he peeped his head through the window
3.make high-pitched sounds; of birds
4.speak in a hesitant and high-pitched tone of voice
5.appear as though from hiding;
the new moon peeped through the tree tops
peep peep也叫呼气末正压,可增加功能残气量,使肺泡在呼气末不易陷闭,提高肺泡-动脉血氧分压差,促进肺间质及肺泡水肿的消退,从而改善肺的顺应性和肺泡通气。PEEP一般为3~10cmH2O。peep简介 PEEP(positive end-expiratory pressure)即呼气终末正压,为机械呼吸机在吸气相产生正压,气体进入肺部,在呼气末气道开放时,气道压力仍保持高于大气压,以防止肺泡萎缩塌陷。在治疗呼吸窘迫综合征ARDS、非心源性肺水肿、肺出血时起