Based on the analysis of present status, features, and causes of public crisis, the thesis firstly brings out the necessity of constructing public crisis management system.
本文首先在分析我国转型期公共危机的现状、特点、诱因的基础上得出我国亟待建立公共危机管理体系的结论。
According to analysis of copper mineral resources properties and of the present status of mining technology, the current problems were explained objectively in this paper.
通过多角度的全面分析铜矿资源特点，就铜矿床开采的技术现状，客观地阐明了目前存在的问题。
Analysis of characteristics of urban landscape waters as well as present pollution status indicated the necessity and imminence of landscape waters treatment.
分析了城市景观水体的特点及其水质污染状况，表明景观水体处理的必要性和迫切性。
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