桩－柱－预应力支撑体系
pile-column-prestressing support system
后张预应力体系
post-tensioned prestressing system
体外预应力体系
external prestressing system
预应力体系
a prestressed concrete system
prestressed system
preparatory-bearing strengthen system
高强度预应力桩
high-strength pre-stressed pile
托换桩预应力施加
underpinning pile prestressed
预应力预制混凝土桩
prestressed precast concrete pile
拱支预应力网架
arch-suspended prestressed space grids