To analyse the rock soil mass types and its engineering geological characteristics are the basis of harnessing environmental engineering geologies and preventing and controlling man made calamities.
分析岩土体类型及其工程地质特征，是治理环境工程地质问题、防治人为灾害的基础。
This paper expounds the important meaning to guarantee and raise the reliability taking precautions against fire calamities for the system of city lifeline engineering.
阐述了保证和提高城市生命线工程系统的防(火)灾可靠度的重要意义。
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