News
2d
Sciencing on MSNHere's How Tunnel Boring Machines Work (And Why They're Sometimes Buried Underground)Tunnel boring machines have been in operation for over 200 years and they operate on the same basic principles today as they ...
R. China School of Civil Engineering, Sun Yat-sen University, Guangzhou 510275, P. R. China State Key Laboratory for Tunnel Engineering, Guangzhou 510275, P. R. China Southern Marine Science and ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results