high level road tunnel 高等级公路隧道
high-level road surface 高级路面
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When the corner forms of section on the existing concrete column of the high-level road were chosen, didn't consider the effect on the durability of section.
既有高架路混凝土立柱截面角区形式的选取，没有考虑其对截面耐久性的影响。
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