![Men dressed as astronauts hand out masks in Taiyuan city of North China's Shanxi province – one of China's coal mine hubs - on Jan 31, 2013. [Photo by Liu Jiang/Asianewsphoto]](U470P886T1D48457F12DT20130201164126.jpg "Men dressed as astronauts hand out masks in Taiyuan city of North China's Shanxi province – one of China's coal mine hubs - on Jan 31, 2013. [Photo by Liu Jiang/Asianewsphoto]")
Men dressed as astronauts hand out masks in Taiyuan city of North China's Shanxi province – one of China's coal mine hubs - on Jan 31, 2013. [Photo by Liu Jiang/Asianewsphoto]
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