The domestically made tunnel boring machine Zhenxing starts its work on Dec 25. On Dec 25, the domestically made tunnel boring machine Zhenxing started its work and began excavating the tunnel of Heyan road through Yangtze River in Nanjing city. This is the first time a domestically developed tunnel boring machine to work through Yangtze River.[Photo/Xinhua]
The domestically made tunnel boring machine Zhenxing starts its work on Dec 25.[Photo/Xinhua]
The domestically made tunnel boring machine Zhenxing starts its work on Dec 25.[Photo/Xinhua]
