长距离无压引水隧洞
long-distance non-pressure water diversion tunnel
long tunnel
长距离引水隧洞
long-distance diversion tunnel
超长隧洞工程
Ultra long tunnel project
Super-long Tunnel
城门洞形隧洞
Arch cross-section tunnel
穿黄盾构隧洞
shield tunnel crossing Yellow River
穿黄河隧洞
tunnel across Yellow River
穿黄隧洞
Yellow-River-crossing tunnel
yellow river tunnel
Yellow River-crossing tunnel
the Yellow River-crossing tunnel
yellow river crossing tunnel
tunnels crossing yellow river
the Yellow river passing tunnel
tunnel crossing Yellow River
tunnel through the Yellow River
the tunnel passing through the Yellow River
tunnel passing through the Yellow River
大伙房输水隧洞
dahuofang water conveyance tunnel
dahuofang water diversion project