Tunnels
Today's tunnels, which extend through mountains and underneath oceans and rivers, are marvels of engineering. Readers take a close-up look at these structures and how they are built and maintained. Each chapter will focus on a key area, including the earliest tunnels, the technological advances...
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| Format: | EBOOK |
| Language: | ENGLISH |
| Published: |
Enslow Publishing, LLC
2020
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| Series: | Exploring infrastructure |
| Subjects: |