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21 large-scale mineral deposits discovered during the 11th five-year period in Guizhou

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How to improve the anti-jamming capability of surveillance cameras

Central Financial Subsidy for Rural Renewable Energy Building Application Notice

Industry structure needs to adjust three major factors to promote plate prices general rise

Footwear sales in Brazil increased by 12.5% ​​year-on-year in 2010

Tangshan Steel realizes a hundred yuan reduction in energy cost per ton steel

Application and Development Trend of Biometric Identification Technology