单词 | rolling road |
释义 | rolling road/ˈrəʊlɪŋ rəʊd/noun 1 US. A flat road along which casks of tobacco are rolled. Now historical. 2 US. A large conveyor belt functioning as a moving roadway for carrying horses, freight, etc., up an incline. Now historical.
3A dynamometer on which the horsepower of a vehicle is tested by driving rollers which provide friction similar to that of actual driving conditions. OriginEarly 18th century; earliest use found in Laws of Maryland. Partly from rolling + road, and partly from rolling + road. |
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