于此同时，我们的直立姿势使得气管和食管出于一个近乎垂直的位置。
Simultaneously, our upright posture put the trachea and esophagus in a near-vertical orientation.
他说煤气管道的位置不对，那个人根本不懂他这一行。
He said it was a most ridiculous place to put the gas-pipe, and the man who did it evidently knew nothing about his business.
目的观察不同气腹压力对气管隆凸位置的影响。
Objective to evaluate the effects of pneumoperitoneum on tracheal carina position.
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