First, a trailer and a container both serve as cargo-carrying units but differ in design and usage. A trailer is typically a nonmotorized vehicle that attaches to a truck's cab and is used to transport goods. Trailers come in various types, such as dry vans, flatbeds and refrigerated trailers, depending on the nature of the cargo.
A container, on the other hand, is a large, standardized shipping unit, often used for international freight. Containers are designed to be easily transferred between different modes of transportation such as ships, trucks and trains, without unloading the cargo. These units typically are steel, stackable and come in standard sizes (20-foot, 40-foot).
Containers often are used in intermodal shipping, offering flexibility and efficiency in long-distance, multimodal transport. Trailers are more varied for local transport, while containers are designed for global, multimodal logistics.
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