- 释义：
- n. 气管
- 例句：
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An appropriate - size tube is chosen to fit the trachea.
选用与气管大小相仿的管子.
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The trachea in some patients is difficult or impossible to intubate under any circumstances.
有的病人的气管在任何情况下都是很难、或根本不可能插管的.
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Conclusion Saber sheath trachea is a sign of rather severe COPD.
结论剑鞘气管是较重的copd的标志.
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