It must include either gears, pulleys,belt drives, cams, or levers. In the report include; when it was invented, who invented it, why it was invented, how it works and what it is called?Minimum of 2 pages, max 4.Include Bibliography.
Search for the tunnel excavator by horizontal boring , that was used to construct the tunnel between England and France
Hydro-Hidraulic okorder /
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