桥梁耐久性设计
durability design of bridges
桥梁抗震设计
anti-earthquake design of bridges
Anti-seismic design of bridge
桥梁构件设计使用寿命
design service life of bridge elements
桥涵设计
bridge and culvert designs
design of bridge and culvert
design of culverts and bridges
桥渡设计
bridge design
bridge crossing design
Design of Bridge Transition