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钢筋混凝土楼(屋)盖结构大都采用单向板、双向板、主次梁结构、无梁楼板以及井字梁结构等。
The one-way slab, two-way slabs, principal and subordinate-beam structure, non-beam structure and the grid-beam structure are putting into use in the reinforced concrete slab.
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