Acid fog pollution question has been solved effectively by flocked exhaust system with moving cover board.
采用活动式盖板密封排气系统有效地解决了酸雾污染问题。
On several occasions, pollution combined with fog has been so bad that motorists have had to turn on their headlights in the middle of the day.
还有好几次是污染伴随着大雾，糟糕到大中午汽车都得开前灯才行。
The insurance plan will not protect against clouds, fog or haze — all frequent occurrences in China's big cities, thanks to high levels of air pollution.
这一保险计划承保范围不包括多云、有雾或雾霾的情况，而由于空气污染严重，中国的大城市常常出现这些天气现象。
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