RIVER-CROSSING SHIELD TUNNEL
the project of Yellow River crossing tunnel
the Yellow River-crossing tunnel
tunnel crossing Yellow River
Yellow River Crossing Tunnel
Yellow River-crossing tunnel
Yellow-River-crossing tunnel
sub-river shield tunnel
River-crossing Tunnel
过河隧道
过江(河)隧道
越江隧道
过江隧道
穿河隧道
穿江隧道
small cross-section river-crossing tunnel
tunnel crossing river and bridge
Xiangjiang River Crossing Tunnel
Yangtze River crossing tunnel
Yellow River Tunnel Project
canal crossing Yellow River