| 释义 |
roadbed
road·bed R0266200 (rōd′bĕd′)n.1. a. The foundation upon which the ties, rails, and ballast of a railroad are laid.b. A layer of ballast directly under the ties.2. The foundation and surface of a road.roadbed (ˈrəʊdˌbɛd) n1. (Civil Engineering) the material used to make a road2. (Civil Engineering) a layer of ballast that supports the sleepers of a railway trackroad•bed (ˈroʊdˌbɛd)
n. 1. a. the bed or foundation for the track of a railroad. b. the layer of ballast immediately beneath the ties of a railroad track. 2. the material of which a road is composed. [1830–40] Thesaurus| Noun | 1. | roadbed - a bed supporting a roadbed - a foundation of earth or rock supporting a road or railroad track; "the track bed had washed away"road, route - an open way (generally public) for travel or transportationsafety island, safety isle, safety zone, traffic island - a curbed area in a roadway from which traffic is excluded; provides safe area for pedestrians |
Translations
roadbed
roadbed[′rōd‚bed] (civil engineering) The earth foundation of a highway or a railroad. roadbed
Words related to roadbednoun a bed supporting a roadRelated Words- bed
- road
- route
- safety island
- safety isle
- safety zone
- traffic island
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