皇冠体育app High-Tech Fair 2010 kicks off
(chinadaily.com.cn) Updated: 2010-11-16 21:11
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Anti-static garments are shown at a pavilion, Nov 16, 2010. [Photo/chinadaily.com.cn] |
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New species of catalysts are displayed at the pavilion of a coal and chemical industrial group, Nov 16, 2010. [Photo/chinadaily.com.cn] |
