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"Tractor-trailer" is a noun we often see, for example, in the driving test question bank, it is often seen that "the internship period of vehicles shall not be tractor-trailer", refers to the use of vehicles to drag the rear carriage of a behavior. In fact, in addition to the meaning of the verb, tractor-trailer also refers to a very widely used in the logistics and transportation industry.Generally speaking, tractor-trailer refers to a type of vehicle with no driving capacity and mainly used to provide cargo loading space and bearing capacity.

In everyday life, we sometimes see or hear the term "tractor-trailer". What is "tractor-trailer"? To be precise, the term "tractor-trailer" generally exists in two ways:One is a noun, which refers to a freight vehicle that has no driving force of its own, but is primarily load-bearing, and needs to be driven by a pulling action that pulls the front of the vehicle.

Semi-trailer is a common type of vehicle in long-distance cargo transportation. It has no driving force of its own, so it needs to be connected with the tractor through the traction pin and realize driving by the driving force of the tractor.

In recent years, the country's attention to environmental protection has been increasing, and the new energy of vehicles has gradually become a trend, especially in the field of passenger cars, almost all major brands have launched new energy models. With the rising international fuel prices, many commercial vehicles have also begun to enter the field of new energy.

Semi-trailer is a common type of vehicle in long-distance cargo transportation, which has no driving force of its own, and needs to be connected with the tractor through the traction pin, using the driving force of the tractor to achieve driving.

Trailer is a type of vehicle commonly used in the field of transportation, generally refers to its own no power device, the need to use a tractor to tow the vehicle, such as trailer RV, camper, is a kind of trailer.

Semi-trailer is a trailer whose axle is placed behind the center of gravity of the vehicle and equipped with a coupling device that can transfer the horizontal and vertical forces to the tractor. It has no driving force of its own and needs to be connected to the tractor with traction pins to achieve driving with the driving force of the main vehicle.Compared with full trailer, semi-trailer is mainly used for long-distance cargo transportation, and can be subdivided in type. Different types of semi-trailer are not the same for transportation of goods.

Semi-trailer is a kind of model used more frequently in modern logistics transportation industry, which is composed of two parts: tractor and semi-trailer. Usually, tractor-trailers and semitrailers carry separate license plates, with the semitrailer plate having one more character than the tractor-trailer.Usually owners mention the "locomotive", in fact, is a popular name, refers to the tractor. The tractor is the source of driving power of the semi-trailer. It has driving ability and can drive the semi-trailer through the connecting device.

What kind of car is a trailer? On this issue, in fact, there is no unified, clear concept statement, enter "what is a trailer" in the search engine, often can find a lot of different explanations, can be summarized into the following:1, road wrecker, also known as trailer, road rescue vehicle, towing vehicle, with lifting, pulling and lifting traction and other functions.2, tractor, that is, commonly known as the front, such as often said "a tow a hang", refers to a tractor + a trailer.3, no driving force of its own car bucket.

In recent years, the national emphasis on environmental protection has been increasing, and the new energy of vehicles has gradually become a trend, especially in the field of passenger cars. Almost all major brands have launched new energy models. As the international fuel price continues to rise, many heavy vehicles also began to enter the field of new energy.At present, new energy heavy vehicles are more common in the market, mainly including electric dump trucks, electric trucks, electric tractors, electric special vehicles, electric sanitation vehicles and so on.