prestressed concrete beam bridge
短语词组
- Prestressed concrete continuous beam bridge 预应力混凝土连续梁桥
- prestressed concrete truss beam bridge 预应力混凝土桁架梁桥
- double -decked prestressed concrete beam bridge 双层预应力混凝土梁桥
- prestressed concrete box -beam bridge 预应力混凝土箱梁桥 返回 prestressed concrete beam bridge