You must know Bulla , surely !

你肯定认识波拉，没错的！

The official document issued by the Pope was sealed with a bulla.

由教皇颁发的官方文件是用印玺封住的。

Generally understanding the clinical manifestations surgical treatment of pulmonary bulla.

了解肺大疱的临床表现和外科治疗。

In cases where spontaneous rupture occurs there is discontinuity of the pleura usually over an emphysematous bulla.

在胸膜自发性破裂的时候，胸膜的连续性发生中断，在破裂处上通常会有气肿。

Objective To discuss the experience in surgical treatment of gravis pulmonary bulla and in management during peri-operation.

李英杰，李捷，于长海，俞建琦，张文，夏晖目的总结重症肺大疱的手术治疗经验。