肺泡形成丛集的肺泡囊，经由肺泡管连接至支气管。

Alveoli form clusters (alveolar sacs) connected by alveolar ducts to the Bronchioles.

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在时间上，古地震事件的分布是不均匀的，具有丛集的特征；在空间上，具有西段或中东段（中段）来回迁移的特征。

The paleoevents are characterized by clustering in time and migrated back and forth from the west segment to middle - east segment.

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内含完整的丛集和抄写功能。

It includes full Flexible Grid and cluster capabilities.

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