Spillway Tunnel Outlet in Left Bank

three tunnels into one tunnel outlet

Tunnel Outlet

outlet of tunnel

diversion tunnel and spillway tunnel

option of separate highway tunnel and Metro tunnel

railway tunnel under crossing the highway tunnel

Shield Tunnel and Rock Tunnel

water tunnel and salt tunnel

750kV outlet device

abortive grain outlet

air inlet and outlet

Air Outlet

air outlet angle

air outlet grille

air outlet opening

Air Outlet Size

air outlet valve

air outlet velocity