At present, the construction enterprises face two major difficult problems in management and administration.
当前施工企业在经营管理中面临着两大难题。
It is difficult to handle underground water in the process of subway construction.
在地铁建设过程中，如何处理好地下水是一大难题。
Soft groundwork disposal is a difficult problem in the freeway construction.
软基处理是高速公路建设中的一个难点问题。
Therefore, they are more difficult in geological investigation, design, construction and operation than land tunnels.
海底隧道深埋于海水以下，因而在勘探、设计、施工和运行方面都比陆地隧道更困难。
The excavation of inclined shaft was always difficult in the construction of Pumped-Storage Power Station.
在抽水蓄能电站中斜井开挖施工历来是一个难点。
Economic evaluation in environmental impact on construction project or technology upgrading project remains difficult.
建设项目或技术改造项目的环境影响经济评价至今仍是项目评估中的难点之一。
The calculation of base sedimentation is a difficult issue in the construction of highway.
基础沉降计算是高等级公路建设中的一个难点问题。
In the actual construction, must guarantee the design the weir surface curve form, is difficult.
实际施工中，要保证设计的堰面曲线形式，较为困难。
The construction function and the destruction function are difficult parts in object-oriented programming design.
构造函数和析构函数是面向对象程序设计中的难点。
The crack of concrete slab is a difficult problem in the design and construction.
混凝土面板裂缝一直是面板设计与施工中的一个难题。
In the highway construction on soft foundation, "bump at bridge-head" is a difficult technical problem.
在软土地基修建高等级公路中，“桥头跳车问题”是一个技术难题。
In the highway construction on soft foundation, "bump at bridge-ends" is a difficult technical problem.
在软土地基修建高等级公路中，“桥头跳车问题”是一个技术难题。
In the highway construction on soft foundation, "bump at bridge-ends" is a difficult technical problem.
在软土地基修建高等级公路中，“桥头跳车问题”是一个技术难题。
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