| 单词 | trailer-on-flatcar | 
| 释义 | > as lemmastrailer-on-flatcar  c.   trailer-on-flatcar, used to denote a system of freight transport whereby trailers (and other unaccompanied road freight vehicles) are carried on railway cars. Cf. piggyback n. 2. Originally U.S. ΘΚΠ society > travel > rail travel > 			[noun]		 > conveyance by rail or train > specific system of freight transport piggybacking1936 TOFC1954 trailer-on-flatcar1954 kangaroo1967 1954    Economist 13 Mar. 779/1  				These ‘piggy-backs’ or ‘trailers-on-flat-cars (TOFC)’..have now become a major preoccupation of the railways. 1964    Economist 26 Sept. 1243/1  				The [US] railways have introduced TOFC service—trailer-on-flatcar, better known as Piggyback. 1979    Railway Gaz. Internat. Aug. 719/2  				Piggyback, otherwise known as trailer-on-flatcar (TOFC), has proved to be an area of strong..growth. < as lemmas  | 
	
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