摘要
On March 21 st 2012,two 296-meter-high towers,the highest in South America,o cially started assembling at Brazilian 500-kV Spanning-Amazon Transmission Project constructed by Zhejiang Electric Power Transmission &
On March 21st 2012, two 296-meter-high towers, the highest in South America, officially started assembling at Brazilian 500-kV Spanning-Amazon Transmission Project constructed by Zhejiang Electric Power Transmission & Transformation Corporation under the State Grid Corporation of China (SGCC).