1. Air can circulate freely through the tunnels.

2. They hollowed out a tunnel through the mountain.

3. He emerged from the tunnel into blinding sunlight.

4. The tunnel project has already fallen behind schedule.

5. The tunnel goes right underneath the city.

6. The tunnel entrance was submerged by rising sea water.

7. The tunnel was blasted out of solid rock.

8. Moles dug tunnels under the lawn.

9. The rock was caverned out to make a tunnel.

10. A tunnel was not considered economically feasible.

11. The train disappeared into a tunnel.

12. He tunneled himself out of prison.

13. The Channel Tunnel project is the biggest civil engineering project in Europe.

14. The roof of the tunnel caved in on the workmen.

15. A tunnel entrance was found within the precincts of the prison camp.

16. Rescuers used props to stop the roof of the tunnel collapsing.

17. The Channel Tunnel was jointly funded by the French and British.

18. A worker put a prop against the wall of the tunnel to keep it from falling.

19. The tunnel would be well - ventilated if tall chimneys were built above sea - level.

20. They will have to block up the entrance to the tunnel.

21. Now the tunneling goes by[sentencedict.com],[http://sentencedict.com] and my building starts cracking and sinking into the ground.

22. Switchblades opened in my skull, tunneling deep into the center of my brain.

23. This service provides HTTP tunneling support for clustered environments.

24. Tunneling (RFC 2893):It allows you to encapsulate one packet head into the other and one protocol will communicate with others through the encapsulation in the other protocol.

25. Fabrication of new types of junctions in tunneling magnetoresistance and study on the interlayer exchange bias coupling will be the main points.

26. Excavated in 1, 239 days, the 26, 800-foot Elizabeth Tunnel set a record for hard-rock tunneling.

27. Combining with open-cut method or subsurface excavation method, subway station is built after the station passenger tunnel is perforated by shield tunneling.

28. It is found that the electrons may be transferred into delocalized states with high energy and transited to surface states through hot electron tunneling under high electron concentration.

29. Moir é patterns on HOPG were studied with scanning tunneling microscopy ( STM ).

30. The electrical conduction mechanism is considered to be touching conductivity and also tunneling conductivity.