Bottom crawler
A bottom crawler is an underwater exploration, research and work vehicle. It is designed to sink to the bottom of a body of water, where it uses the traction of its wheels or tracks against the bottom and can move a load.
A bottom crawler is an underwater exploration, research and work vehicle. It is designed to sink to the bottom of a body of water, where it uses the traction of its wheels or tracks against the bottom and can move a load.
A bottom crawler is an underwater exploration, research and work vehicle. It is designed to sink to the bottom of a body of water, where it uses the traction of its wheels or tracks against the bottom and can move a load.
Source: Wikipedia "Bottom crawler" · CC BY-SA 4.0
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