设计选型时，宜考虑其供氧量、服务面积和安装方式等因素。

In design, we should think of the factors, such as the supply of oxygen, the service area and installation methods.

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前言：目的：通过改善内耳循环障碍，增加组织供氧量来促进听力恢复。

Objective: Goal: Through the improvement internal ear circulation barrier, the increase organization promotes the hearing restoration for the oxygen quantity.

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患者睡觉的时候可能会有10到25秒的时间是没有呼吸的，这会减少血流和大脑的供氧量。

While asleep, suffers may stop breathing for between 10 to 25 seconds at a time, depleting the bloodstream and brain of vital oxygen supplies.

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