(二)气管和主支气管(trachea and primary bronchus ) 1.气管和主支气管(trachea and primary bronchus )的管壁结构。
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Objective To design the trachea main bronchus covered embranchment stent and study the primary treatment for thoracostomach main bronchial fistula and main bronchial stenosis.
目的设计治疗胸腔胃主支气管瘘和主支气管狭窄的气管主支气管覆膜分支状内支架。
The air then passes through the larynx and down the trachea. The trachea splits into two tubes, called the primary bronchi. One bronchus passes into each lung.
接着空气通过喉下至气管，气管分为两根，称为主支气管，每一根主支气管通入一叶肺。
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