reinforced concrete [ˌri:ɪnˈfɔ:st, -ˈfəʊrst]

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附加级

钢筋混凝土

The structure comprises several arching waves of reinforced concrete,which support a four-lane highway.结构由几个钢筋混凝土波浪状拱构成，支撑起一条四车道的公路。