Semi-trailer
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A semi-trailer is a trailer without a front axle. The combination of a semi-trailer and a tractor truck is called a semi-trailer truck.
A tractor unit pulling a semi-trailer
A truck pulling a semitrailer using a trailer dolly
A 1920 advertisement for semi-trailers
Grain hopper trailer
Articulated vehicle
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An articulated vehicle is a vehicle which has a permanent or semi-permanent coupling in its construction. This coupling works as a large pivot joint, allowing it to bend and turn more sharply. There a
An articulated Mercedes-Benz Citaro, bending as it turns a corner
Interior of an articulated tram, showing the pivoting floor and concertina gangway connection
Articulated well cars with containers
London and North Eastern Railway articulated train from 1924