Is the dog slab sided (lack of rib spring) or barrel ribbed (too wide)?
狗肋部是平板的(肋骨弯曲不足)还是桶状肋(太宽)？
Unbond prestressed concrete wide flat beam-slab structure is a new type of floor system.
无粘结预应力混凝土扁梁-平板结构体系是一种新型的楼盖体系。
Unbond prestressed concrete wide flat beam-slab structure is a new type of floor system.
无粘结预应力混凝土扁梁-平板结构体系是一种新型的楼盖体系。
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