释义 |
DictionarySeecaterpillarcrawler tractor
crawler tractor[′krȯ·lər ‚trak·tər] (mechanical engineering) A tractor that propels itself on two endless tracks revolving around wheels. crawler tractor crawler tractor An engine-driven vehicle that travels on segmented roller-chain tracks designed to reduce ground pressure and increase traction in loose footing; powesed by a gasoline or diesel engine. |