1月9日，旅客在拉萨贡嘎机场办理出港手续。目前，拉萨贡嘎机场周边天气逐渐转好，机场航班恢复正常，滞留旅客已全部出港。连续几天来，西藏拉萨贡嘎机场周边出现强沙尘天气，导致能见度极低，无法达到航班安全飞行要求，致使航班大面积延误。新华社记者 普布扎西 摄 On January 9,,Tourists in Lhasa gonggar airport departure formalities.At present,,Lhasa gonggar airport surrounding the weather gradually turn good,Airport flights returned to normal,Stranded passengers has all the departure.A few days to,Tibet Lhasa gonggar airport peripheral appear strong dust weather,Lead to low visibility,Can't meet the requirements of flight safety flight,The large area of flight delays.Xinhua news agency reporters puebla tashi perturbation