Visibility at the city's airport came down to zero, bringing air traffic to a standstill.

这个城市机场的能见度下降到了零，使航空运输陷入停顿状态。

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In Chengdu, Shuangliu International Airport closed at around 6:50 a. m. , as visibility fell below 50 meters. It resumed normal operations at around 11 a. m. when the fog dispersed.

在成都，双流国际几张，大约在早上六点五十分被关闭了，因为能见度降到了50米一下。

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Visibility in the airport dropped to about 300 meters at noon and the fog is estimated to linger in the city in the coming 12 hours, according to the latest weather forecast.

中午，机场的能见度低于300米。根据天气预报，雾，在未来的12小时，估计继续停留在乌鲁木齐。

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"The visibility at Beijing Capital International Airport at one point fell to five to 10 metres, delaying some flights, " Xinhua news agency reports.

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The airport blamed disruption caused by low visibility and snow at other UK airports, which resulted in the loss of 8, 000 passengers at Glasgow.

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While the pilots should have been able to use visual references and navigation aids at the airport to judge if they were descending too quickly, reduced visibility from a burst of rain could have made landing more difficult, experts said.

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