Shahegou bridge is a double arch bridge in Shandong Liaocheng city that firstly use anchor spray cement concrete to reinforce.
沙河沟桥是山东聊城首座采用锚喷混凝土加固的双曲拱桥。
Shahegou bridge is a double arch bridge in Shandong Liaocheng city that firstly use anchor spray cement concrete to reinforce.
沙河沟桥是山东聊城首座采用锚喷混凝土加固的双曲拱桥。
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