WHAT ARE THE CHARACTERISTICS OF MODERN TUNNEL CONSTRUCTION?

2 Answers

Relevance
  • 3 weeks ago

    The characteristics are:

    Very boring all the way through.

  • Joseph
    Lv 7
    3 weeks ago

    Really?   You want us to distill dozens of textbooks and thousands of articles and papers into less than 10,000 words?  No two tunneling projects are the same.

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