Second:to adopt comprehensive evaluation of grey decision making choosing construction unit in bidding stage.

第二，在项目招投标阶段采用灰局势决策综合评估法合理选择施工单位；

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A single level grey decision making model, which is aimed at some existing problems on present decision of purchasing equipments, is proposed and its applications are shown with examples.

针对目前设备采购决策中存在的问题，提出一种单层次灰色决策数学模型，并以实例说明其应。

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And by demonstration reach, gives the method of application of Grey Theory in large infrastructure projects decision-making.

并进行了实证研究，提供了灰色系统理论在大型基础设施决策中的应用方法。

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In its 120 pages, Weathering Uncertainty references 280 publications from the scientific literature (peer-reviewed and grey) and covers themes at the core of the Fifth AR such as foundations for decision-making on indigenous knowledge, traditional livelihoods, vulnerability, resilience, and adaptation policy and planning.

UNESCO: Communication and Information