Aerial work truck refers to a special-purpose vehicle that transports workers and equipment to the site for aerial operations.

A utility vehicle is a type of vehicle designed for practical work, transportation, and multi-purpose operations rather than pure passenger travel. It usually has a sturdy structure, strong load capacity, good passability and durability, and is widely used in construction sites, farms, factories, logistics and transportation, property maintenance and other industrial and daily operational scenarios. Utility vehicles often include pickup trucks, small trucks, engineering service vehicles, tool carts, all-terrain off-road work vehicles and other models. They are characterized by flexible use, strong functionality, and the ability to carry personnel, tools, equipment and materials at the same time to meet various on-site operation needs.

A mobile advertising vehicle is a special purpose vehicle equipped with display screens, audio equipment, lighting and other publicity facilities. It integrates vehicle mobility with advertising communication, and can carry out mobile promotion, on-site activities, information release and brand display in urban areas, commercial streets, communities, squares and other scenarios. It features flexible movement, wide coverage, strong visual impact and high publicity efficiency, and is widely used in commercial promotion, public welfare communication, event notification and market marketing.

A bulk powder transport truck is a specialized heavy-duty vehicle designed for the air-pressure conveying and sealed transportation of powdery bulk materials. It is mainly composed of a high-strength tank body, air compressor, fluidized bed system, pneumatic discharge pipeline and chassis. This type of truck features good sealing performance, high unloading efficiency, no material pollution and low labor cost. It is widely used in construction, chemical industry, cement, fly ash, mineral powder, food starch and other industries to realize bulk loading, transportation and automatic unloading of powder materials, effectively improving logistics efficiency and reducing transportation losses.

An LPG truck, often called a bobtail, is a specialized vehicle designed to transport and deliver liquefied petroleum gas (propane/butane) safely. Typically featuring a fixed tank with a pump, meter, and hose, these trucks supply small bulk tanks, residential customers, and fuel stations.

A semi-trailer is a freight trailer without its own power, which must be used with a tractor unit. It is the main vehicle for long-distance and heavy-duty highway transportation. 请再翻译一些关于半挂车的介绍。 请用英文介绍半挂车的历史。 请用英文介绍半挂车的种类。

A chick transport vehicle is a special purpose vehicle specially designed for the long‑distance transportation of day‑old chicks, breeding chicks and other young poultry. It is usually equipped with a constant temperature control system, ventilation system, humidification device, multi‑layer breeding racks and lighting system to ensure a stable, comfortable and safe environment during transportation. The vehicle features good air circulation, precise temperature control, convenient loading and unloading, and strong durability, which can effectively reduce the mortality rate of chicks and improve transportation efficiency. It is widely used in large‑scale poultry farms, hatcheries, breeding bases and livestock product logistics.

A concrete mixer truck is mainly composed of a chassis, a hydraulic system, and a rotating mixing drum.

Garbage trucks are essential sanitation equipment for municipal environmental services, industrial and mining enterprises, property management and other scenarios. Their core functions are to efficiently collect, compress, seal and transport garbage, so as to reduce secondary pollution.

A refrigerated truck is a closed special-purpose van equipped with an insulated compartment, a refrigeration unit, and a precise temperature control system. Its core function is to maintain a constant low temperature throughout the transportation process to prevent spoilage of perishable or temperature-controlled goods.

Asphalt Distributor Truck, equipped with insulated tank, thermal oil heating system, precise spray control unit. Capable of spraying hot asphalt, emulsified asphalt, modified asphalt uniformly at preset rate. Suitable for prime coat, tack coat, seal coat in highway construction and pavement maintenance projects.

The tractor unit is an independent power unit for highway road trains. It has no cargo box of its own and is connected to a semi-trailer via a fifth-wheel coupling (with approximately 20%–30% of the front load of the trailer resting on the rear axle of the tractor). It can be quickly disconnected from the trailer to enable drop-and-hook transport, significantly improving logistics turnover efficiency.

A road rescue vehicle is a special operation vehicle equipped with lifting, flatbed, hoisting and towing mechanisms. It is used to quickly tow or rescue broken-down, accident-involved and illegally parked vehicles, ensuring unobstructed road traffic. It is widely used for law enforcement and rescue on urban roads, expressways, accident scenes and parking lots.

A water sprinkler truck is a special sanitation vehicle consisting of a truck chassis equipped with a sealed water tank, a special water pump and multiple sets of spraying systems. Powered by the engine power take-off to drive the water pump, it can perform front flushing of road surfaces, rear spraying for dust suppression, side spraying or sprinkler irrigation for greenery, and long-range spraying with a high-position water cannon. It also features multiple functions such as water transportation, emergency fire fighting, and on-site mist spraying for dust control.

A road sweeper is a special sanitation vehicle integrating road sweeping, garbage collection, dust suppression and sewage recovery. It is mainly used for mechanized cleaning of urban roads, factory areas, parks, construction sites, national highways and expressways.

A truck-mounted crane is a special-purpose vehicle that integrates cargo transportation and on-site hoisting, equipped with a hydraulic crane installed on the truck chassis.

All sanitation vehicles operate on the core principle of vacuum negative pressure suction, yet they differ distinctly in terms of functionality, structure, and applicable scenarios. A fecal suction truck is a specialized vehicle primarily used for suction and transportation of liquid waste such as feces and sewage. A sewage suction truck features more powerful capabilities, capable of suctioning sludge, slurry, sand, gravel and other substances containing solid impurities, and is used for municipal sewer maintenance and industrial desilting.

A fire truck is a special vehicle dedicated to fire fighting, auxiliary fire suppression and emergency rescue. It is usually painted in conspicuous red and equipped with warning lights, sirens and professional fire-fighting equipment.

Is a high-passage vehicle specially designed for off-road conditions such as mountainous terrain, deserts, snowfields and muddy roads. It is used for the rapid delivery of personnel and equipment, and is widely applied in military operations, emergency rescue, forest fire prevention, oilfield exploration and other scenarios.