Tractor unit
Definition
A heavy-duty motor vehicle built and equipped exclusively for towing massive semi-trailers or other unpowered heavy utility vehicles. Commonly known as a tractor unit or semi-truck cab, this logistical machinery features a specialized fifth-wheel coupling system located above the rear axle, serving as a core pillar in international industrial road freight.
Bilingual Equivalents
- Tractor unit
- Prime mover
Grammatical & Source Details
| Inflection Type | Neuter noun, regular automotive plural and structural case variations. |
| Formation | Compound noun formed with the prefixoid 'auto-' (automobile) attached to the base noun 'tractor' (tractor). |
| Spelling / Pronunciation | [a.u.to.trak.ˈtor] |
| Source | Encyclopedia of Modern Fleet Logistics, Heavy Transport and Commercial Vehicles |
Contextual Usage Examples
RO: Compania de transport a achiziționat un autotractor nou de 500 de cai putere pentru rutele din Europa de Vest.
EN: The transport company purchased a new 500-horsepower tractor unit for routes in Western Europe.
RO: Mecanicul a inspectat sistemul de prindere al acestui autotractor înainte de a cupla semiremorca frigorifică.
EN: The mechanic inspected the coupling system of this tractor unit before connecting the refrigerated semi-trailer.
RO: Un autotractor a derapat pe carosabilul umed, blocând ambele benzi de circulație ale drumului național.
EN: A tractor unit skidded on the wet road surface, blocking both traffic lanes of the national highway.
Idioms & Phrases
Autotractor cu șa / Fifth-wheel tractor unit
RO: Configurație mecanică standard prevăzută cu o platformă metalică pivotantă destinată fixării sigure a picioarelor semiremorcii.
EN: A standard mechanical configuration outfitted with a pivoting metal plate designed for the secure attachment of a semi-trailer.
Ansamblu autotractor și semiremorcă / Articulated vehicle / semi-truck
RO: Structura rutieră articulată completă (TIR) utilizată pentru transportarea transfrontalieră a zeci de tone de mărfuri.
EN: The complete articulated road structure (semi-truck) used for the cross-border transport of dozens of tons of freight.
Autotractor de mare tonaj / Heavy-duty prime mover
RO: Vehicul industrial masiv, dotat cu osii consolidate, destinat tractării încărcăturilor agabaritice sau speciale.
EN: A massive industrial vehicle equipped with reinforced axles, designed for towing oversized or special loads.
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