Me Yasa Ake Kiran Semi{0}masu Tallace-tallacen Tirela?

Semi{0}masu tallan tallace-tallace sanannen fuska ne a masana'antar sufuri ta cikin gida. Suna zuwa da yawa iri-iri, gami da shimfiɗaɗɗen gado, grid, ƙaramin gado, akwati, tanki, kwantena, da manyan motocin kwarangwal, masu iya biyan mafi yawan buƙatun jigilar kaya.
Don haka me yasa ake kiran su "trailers{0}"? Dalilin yana da alaƙa da tsarin su. Semi{2}} ƙafafun tirela yawanci ana hawa ne a ƙarshen tirelar, don haka ba zai iya tsayawa da kansa ba. Maimakon haka, ƙarshen gaba yana kan sirdi a bayan tarakta. Ta wannan hanyar, tarakta da tirela kowanne yana raba wani yanki na nauyin tirelar. Tarakta ba wai kawai tana jan tirelar gaba ba har ma tana taimakawa wajen tallafawa kayan. Domin tirelar tana ɗauke da wani yanki na nauyin kaya kawai, ana kiranta "trailer semi{7}."
Bambance-bambancen 'yan tirela-' da "cikakken tirela" yana da sauƙin fahimta idan aka kwatanta da cikakkun tireloli. Cikakken tireloli suna da ƙafafu a gaba da bayan tirelar, wanda ke ba su damar tsayawa da kansu. Lokacin da aka haɗa da tarakta, tirela ba ya buƙatar haɗawa da tarakta; ana iya haɗa shi kawai ta amfani da na'urar ja. Tarakta ne kawai ke jan tirelar gaba, yayin da tirelar ke ɗaukar nauyin duka. A taƙaice, ƙaramin tirela{5} "yana raba nauyi," yayin da cikakken tirela "yana ɗauka duka."