doubly prestressed concrete
... 双轴抗拉试验：biaxial tensile test 双重预应力混凝土：doubly prestressed concrete 双重涂层：double coating ...
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采用预应力混凝土空心板或实心薄板作为底板的装配整体式叠合楼盖具有整体式楼盖和装配式楼盖的双重优点，是一种很有前途的楼盖形式。
Assembly-integral composite floor which used pre-stressed hollow slabs or solid thin-slabs has dual merit of integral floor and assembly floor, it is a kind of floor which has good prospects.
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