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The reactor is encased in concrete and steel.
核反应堆由钢筋混凝土围住。
《牛津词典》
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One of the design plans is the bridge tower is steel-encased concrete structure.
其中有一种桥塔设计方案是塔身采用外包钢板混凝土结构。
youdao
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One of the design plans is the bridge tower is steel-encased concrete structure.
其中有一种桥塔设计方案是塔身采用外包钢板混凝土结构。
youdao