Based on calculation of reserves value with cost method, this paper firstly proposes value evaluation model for natural gas reserves (composite model of surplus profit).
在成本法计算储量价值的基础上，首次提出了天然气的储量价值评估模型(超额收益综合模型)。
An evaluation method of the seawater corrosiveness and a composite evaluation method of corrosion resistance are proposed.
提出一种海水腐蚀性的评价方法和一种综合评价材料耐蚀性的方法。
With fuzzy composite evaluation method and analytic hierarchy process, the layout of current traffic observation stations was evaluated.
根据评价结果可知，目前陕西省交通量观测站存在布局不均匀、代表性不足问题。
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