That's despite the fact that a gene expression profile of those cells shows little difference between them and stem cells with alternate fates isolated from the upper airways.

一旦到达损伤部位，这些细胞聚集形成“豆荚状”并启动肺泡相关基因的表达，而这些具有小的空心结构的肺泡正是肺部进行气体交换的位点。

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It is suggested that obstruction of upper respiratory tract by goiter and obstruction of small airways of COPD lead to combined disturbance of ventilation.

结果表明，甲状腺肿大引起的上呼吸道阻塞和COPD的小气道阻塞造成混合性通气障碍。

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Airbus said it began A350 XWB production in Germany with the launch of upper wing shell fabrication at its Stade plant, and reiterated that first delivery to Qatar Airways is on track for 2013.

空中客车公司称已在其位于德国施塔德的工厂开始A 350 XWB飞机的生产，最先投入制造的是上翼外壳，并重申将按计划于2013年首先交付卡塔尔航空公司。

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In nascent development is a robotic arm that flexes like an elephant trunk to glide down the throat for scarless repairs of the upper airways.

FORBES: Robo-docs

Virgin Atlantic Airways' Upper Class now offers complimentary ground transportation to and from airports in 26 international cities, in-flight manicures and access to airport "clubhouses" where travelers can work, dine or get a haircut.

FORBES: Magazine Article

Therefore the main redundancy of the surviving entity will be that all of the vice-presidents and other upper level managers at AMR Corp. will be replaced by the new bosses at U.S. Airways.

FORBES: Gag Order Placed On American Airlines Employees