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單詞乎

roadbed

音標(biāo)['r?udbed]
roadbed是什么意思、roadbed怎么讀

roadbed漢語翻譯

n. 路基

roadbed英語解釋

名詞 roadbed:

  1. a bed supporting a road

roadbed例句

  1. A foundation of crushed rock or a similar substance for a road or railroad; a roadbed.
    路基碎石或類似物質(zhì)做的道路或鐵路的基礎(chǔ); 路基

roadbed詳細(xì)解釋

road.bed

n.(名詞)

The foundation upon which the ties, rails, and ballast of a railroad are laid.
路基:其上可鋪鐵道的枕木、鐵軌和道碴的地基
A layer of ballast directly under the ties.
道碴:直接鋪在枕木下的石碴
The foundation and surface of a road.
公路地基和公路路面

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