long-span continuous PC girder bridge
multi-span PC continual rigid frame bridge
PC chord-stayed truss bridge
PC continuous box girder bridge
PC continuous girder bridge
PC continuous rigid frame bridge
PC continuous rigid frame bridge with long-span
PC continuous rigid-frame bridge
PC stayed truss continuous rigid bridge
PC Steel Wire and PC Steel Strand
assistant shipping channel bridge of Harbin Songpu Bridge
bridge to bridge communication
bridge to bridge radio telephone