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；
On the section through right superior lobar bronchus, the posterior segmental vein descended between posterior and anterior segmental bronchi.
结果：在气管杈层面上，尖后段静脉居中，其前方，前段动脉居前段支气管的内前方；
Results:On the section through tracheal bifurcation, in front of the apicoposterior segmental vein, anterior segmental artery lay medioanterior to anterior segmental bronchus.
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