rock surrounding a tunnel
英
美
- 隧道围岩
双语例句
- The classification of rock masses is in the base of tunnel design and construction.
隧道围岩地质类别的判别是进行隧道支护和施工的基础。 - Long time surface water supply by permeation causes surrounding rock being saturated all the time, to soften up the rock.
长期的地表水渗透补给导致隧道围岩一直处于饱水状态，逐渐使部分岩石软化。
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