City planning to dig deep to clear the air
By Zheng Jinran and Pei Pei in Baoding, Hebei | China Daily | Updated: 2013-01-24 07:20
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A worker at Sinopec Green Energy Geothermal Development carries out equipment repair work to the geothermal heating system in Xiongxian county, Baoding, Hebei province in January, 2010. Hu Qingming / for China Daily |
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