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| English | Russian |
| tri-axle semitrailer | трёхосный полуприцеп |
| tri-coat | трёхслойное лакокрасочное покрытие (translator911) |
| tri-dem | трёхосный мост (Group of three axles on a truck, tractor or trailer. Tridems are most common on European semitrailers. Kenny Gray) |