... 仰拱tunnel invert; inverted arch 底板tunnel floor; floor 预留变形量reserved deformation; prearranged volume of deformation ...
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tunnel floor drain 隧底排水管
pilot tunnel floor 导坑底板
tunnel floor heave 隧道底鼓
tunnel floor plate 衬砌底板
floor tunnel 地板通道
stability of tunnel floor rocks 底板岩层稳定性
ocean floor tunnel 海底隧道
He positioned his feet on the tunnel floor, assessing his footing and evaluating the strength of the concrete beneath him.
他在隧道底板上一步步向前，估计着自己的落脚点和脚下混泥土的强度。
Meanwhile, several problems about ultrasonic detection of the tunnel floor with soft rock are given, which must be paid attention to.
同时提出现场软岩巷道底板超声波探测中应注意几个问题。
Nelson picked his way along the tunnel, stepping around piles of broken stone and lumps of coal tumbled like black dice across the dusty floor.
Nelson沿着隧道小心前行，绕过成堆的碎石和许多块像黒骰子般滚落到粉尘地上的煤炭。
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