Workers debug the equipment at the wind power base in Jiuquan City, northwest China's Gansu Province, Dec. 8, 2009. The Jiuquan wind power base achieved the landmark capacity as the result of the installation of a 200-megawatt wind power unit in Yumen, a city under the jurisdiction of Jiuquan. (Xinhua/Zhu Shiliang)
A truck runs by the wind power base in Jiuquan of northwest China's Gansu Province in this Nov. 30, 2009 picture. (Xinhua/Zhu Shiliang)
Photo taken on Nov. 29, 2009 shows the Changma wind power factory of the wind power base in Jiuquan City, northwest China's Gansu Province. (Xinhua/Zhu Shiliang)
A worker checks the circuit of a wind machine in the wind power base in Jiuquan City, northwest China's Gansu Province, Dec. 7, 2009. (Xinhua/Zhu Shiliang)
