US EUROPE AFRICA ASIA 中文
China / China

Power line inspectors complete test flight

(chinadaily.com.cn) Updated: 2012-11-22 10:36

Power line inspectors complete test flight

Researchers from the State Grid Corp of China examine a power transmission line inspection drone in Northwest China's Qinghai province on Nov 21, 2012. [Photo/Xinhua] 



 

Previous Page 1 2 3 4 Next Page

Highlights
Hot Topics

...