Ib lub tiaj tiaj tiaj tiaj (lossis tiaj tus trailer) feem ntau yog hais txog ib qho trailer tag nrho.
Lub trailer tag nrho bears nws tag nrho cov load ntawm nws tus kheej thiab txuas mus rau lub tsheb towing nkaus xwb los ntawm ib tug cab hitch. Lub tsheb towing tsis tas yuav tsum tau los txhawb lub trailer qhov hnyav; nws tsuas yog muab lub zog xav tau los pab lub trailer kov yeej txoj kev sib txhuam thiab ua haujlwm. Tag nrho cov tsheb thauj khoom feem ntau yog siv rau kev thauj mus los hauv cov chaw tshwj xeeb, xws li docks, factories, thiab ports.
Tag nrho -trailer flatbeds- kuj muaj ntau yam hu ua "trailer tag nrho," "flatcars," los yog yooj yim "trailers"- feem ntau muaj cov log tsheb pneumatic. Lawv yog tus cwj pwm los ntawm qhov siab qis qis thiab lub peev xwm thauj khoom siab, thiab lawv tshem tawm cov kev pheej hmoo cuam tshuam nrog cov log tsheb punctures lossis blowouts. Lawv muaj kev nyab xeeb, yooj yim hauv kev tsim, thiab ruaj khov heev. Tsis muaj lawv tus kheej propulsion system, lawv xav tau lub tsheb towing lossis forklift los rub lawv. Feem ntau, lub tsheb ciav hlau ntawm lub tsheb- muaj xws li ib lossis ntau lub tsheb thauj khoom thauj los ntawm ib lub forklift lossis tsheb laij teb thauj khoom- yog sib sau ua ke los pab txhawb txoj kev thauj mus los ntawm cov khoom lossis kev tuav cov khoom hnyav. Cov tsheb thauj khoom no tau siv dav hauv tshav dav hlau, chaw nres nkoj, chaw nres tsheb ciav hlau, cov chaw tsim khoom, thiab loj- cov tsev khaws khoom loj, qhov uas lawv txhim kho kev ua tau zoo ntawm kev thauj khoom thauj mus los thiab kev thauj mus los, thaum tib lub sijhawm txo cov nqi khiav lag luam cuam tshuam nrog forklifts thiab kev siv zog ua haujlwm.
