The tunnel engineering has always been troubled by the karst issue.
岩溶问题始终是困扰隧道工程界的一个大难题。
Tunnel engineering, as a professional technique, also has grown sound and mature.
隧道工程作为一门专业的工程技术，也已经健全和成熟起来。
Groundwater is one of the important factors to influence the safety of tunnel engineering.
地下水是影响隧道工程安全性的重要因素之一。
Along with increase of span, difficulty and risk of tunnel engineering will increase rapidly.
而随着跨度增加，隧道工程的难度和风险也急剧增大。
The tunnel is a brilliant feat of engineering.
这条隧道是工程方面的辉煌成就。
The tunnel was one of the most ambitious engineering project ever undertaken.
这一隧道是所承接过的要求最高的工程项目之一。
The tunnel is a great engineering achievement.
这隧道是工程上的一项伟大成就。
Highway tunnel is a category of underground engineering.
公路隧道属于地下工程的范畴。
Highway tunnel is a category of the underground engineering.
公路隧道属于地下工程的范畴。
The antiseismic research of subway tunnel is very important in earthquake engineering.
地铁隧道抗震研究是当今地震工程界重要的研究方向。
Shield tunnel is an attractive excavation method in the construction of municipal underground engineering.
盾构法隧道施工在城市地下工程建设中有着广泛的应用前景。
Coal mine soft-rock tunnel is a important constituent of soft rock engineering.
煤矿软岩巷道工程是软岩工程的一个重要组成部分。
Coal mine soft-rock tunnel is a important constituent of soft rock engineering.
煤矿软岩巷道工程是软岩工程的一个重要组成部分。
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