青云翻译

Tunneling by NATM tunnel work area by the north hole, south mouth of the construction work area from the ends to the central organization.

Tunnel construction by NATM construction, project work area, South entrance of this tunnel North entrance at both ends to the Organization construction in the middle.

The tunnel construction according to the new Austria law construction, this subterranean according to the northern Dongkou work area, south the Dongkou work area organizes the construction by the both sides to middle.

tunnel construction law in the new Olympic construction, the tunnel cave in the area north and south by two hole work area to the central organizations end construction.

Tunnel construction by NATM construction, project work area, South entrance of this tunnel North entrance at both ends to the Organization construction in the middle.