On the section through right superior lobar bronchus, the posterior segmental vein descended between posterior and anterior segmental bronchi.
在右肺上叶支气管层面，后段静脉居后段支气管与前段支气管之间；
Results Unilateral bronchus or lobar bronchus was obstructed by thick sputum in 23 patients, where the atelectasis was obstructive.
结果发现2 3例患者粘稠痰液阻塞一侧主支气管或叶支气管，为阻塞性肺不张；
On the section through left inferior lobar bronchus, superior segmenta1 bronchus appeared.
在左肺下叶支气管层面上，上段支气管发出。
On the section through left inferior lobar bronchus, superior segmenta1 bronchus appeared.
在左肺下叶支气管层面上，上段支气管发出。
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