aerial pipe crossing 架空管横越
culvert pipe crossing the street 过街管线涵
pipe arch crossing 管拱跨越
pipe pushing crossing 顶管
crossing pipe 横跨喉管
bridge-crossing water pipe 过桥水管
basket-like semi-crossing pipe bridge 提篮半穿式管桥
monitoring of gully-crossing open pipe 跨沟明管段监测
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