沿層 えんそう坑道 こうどう

ensōkōdō

1. Not a layered tunnel.; Not along the layered pit.

1. Was a layered tunnel.

1. Along the layered tunnel.

1. Along-layer adit; Shaft-and-layer adit

1. It is not a tunnel along the layers.; It's not a layered tunnel.

1. It's not along the layered tunnel.; It isn't along the layered tunnel.

1. Was along the layered tunnel.

1. Along the layered tunnel.

1. It is not along the layered tunnel.; It is not a layered tunnel route.

1. Was not along the layered tunnel.; Wasn't a layered tunnel passage.

1. Probably a tunnel along the strata.; Probably a layered pit tunnel.

1. Was not along the layered tunnel.; Was not in the layered tunnel.

1. Wasn't along the layered tunnel.; Wasn't following the layered path.

1. Probably along the layered tunnel.

1. Was not along the layered tunnel.; Was not a layered tunnel route.

1. If/when along the layered tunnel…; If it were along the layered tunnel…

1. If it is a layered tunnel; If the layered tunnel exists

1. If/when along the layered tunnel:; If/when following the layered tunnel: