发生全肺气肿时，从呼吸性细支气管到肺泡的所有腺泡都丢失了。
Panacinar emphysema occurs with loss of all portions of the acinus from the respiratory bronchiole to the alveoli.
目的：探讨多原发性肺癌与支气管上皮异型增生及肺泡上皮不典型腺瘤性增生之间的关系。
Objective: to investigate the correlation of multiple primary lung cancer with bronchial epithelial dysplasia and atypical adenomatous hyperplasia of bronchiolo-alveolar epithelium.
目的探讨支气管肺泡灌洗（BAL）排出肺间质粉尘的可能性。
Objective To explore the possibility of removing the dust in pulmonary intersititum by bronchoalveolar lavage (BAL).
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