佛吉尼亚州里士满一位年轻人头戴着呼吸机用以治疗睡眠呼吸暂停症。 这种病症奇特，患者在熟睡期间会发生呼吸阻断。
ARichmond, Virginia, teenager wears a CPAP (Continuous Positive AirwayPressure) machine to treat sleep apnea, a condition in which airpassage to the lungs is obstructed during sleep.
乔尔·艾森，美国佛吉尼亚州里士满大学里士满法学院法学教授。
Joel B. Eisen is a professor of law at the University of Richmond School of law in Richmond, Virginia (US).
赛吉满为全球选煤行业提供世界领先的多专业工程、项目交付与运营服务。
Sedgman is a leading provider of multi-disciplinary processing engineering, project delivery and operations services to the global coal industry.
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