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Question:

What is a tractor, what is a trailer, half hung, all hung difference, what is dump truck?

What is a tractor, what is a trailer, half hung, all hung difference, what is dump truck?

Answer:

The full trailer is usually two carriages, the front of the car and tractor head is one, and then back with a car
The semi - trailer is only a tractor - driven car with a long carriage, and the tractor head and carriage are split.
A tractor is a single car, and it is used to drive the car behind which can not move by itselfTrailer is generally tractor + car full name

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