The environment impact synthetic assessment and construction scheme optimum selection problem of hydroelectric plant on the basis of catastrophe theory is approached.
基于突变理论，对水电站环境影响综合评价及建设方案优选问题进行了探讨。
This paper introduces correct selection methods and base design scheme of automatic tower derrick in high and super high building construction.
介绍高层或超高层建筑施工在选择塔式起重机时的正确选用办法和自升式塔式起重机的基础设计方案选择。
This paper introduces the scheme selection, the construction process and the project quality inspection of curtain grouting in consolidation project of Gushan Reservoir in Fanshi County.
文中叙述了繁峙孤山水库险加固工程帷幕灌浆的施工方案选择、施工过程及工程的质量检查。
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