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Tue,Apr 15,2014
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Air purification exhibition in Beijing

(Chinadaily.com.cn)    08:31, April 15, 2014
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Portable PM2.5 attract visitors at an exhibition of air purifiers and anti-bacterial disinfectors at the National Agriculture Exhibition Center in Beijing on Monday, as heavy smog continues to shroud the capital. (Zou Hong/China Daily)


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(Editor:KongDefang、Liang Jun)

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