从国民经济整体角度，对洪灾损失进行分类，确定了洪灾经济损失评估的计算准则。
On the benefit of the whole national economy, the loss of flood damage is classified, and principles of evaluating the economic loss of flood damage are suggested.
最后依据干旱指数建立了干旱受灾面积和成灾面积评估模式，以及干旱经济损失评估模式。
Finally, assessment the model of area covered by drought, the area affected by drought and the economic losses of agriculture by drought is established according the drought index.
在分析森林生态系统所发挥的功能与效益的基础上，提出了森林病虫害灾害经济损失评估的指标体系。
According to the main functions and benefits of forestry ecological system, the index system of the economic losses of forest pest disaster evaluation was determined.
文章从森林病虫害灾害的自然属性出发，对森林病虫害灾害的经济损失评估指标体系的建立进行了探索。
Based on the natural properties in forest pest disasters, the evaluation system of the (economic) losses of forest pest disasters was explored.
运用系统分析方法进行系统研究、系统设计，建立了洪灾经济损失评估系统的结构图及直接经济损失评估模型。
By using the method of system analysis, through the steps of system research and system design, the framework of evaluation system for economic loss of flood dam...
本文针对一个区域的现况，以经济损失为指标，用模糊数学的方法，建立了区域地震综合防御体系能力的评估模型。
A model for evaluating the capacity of district synthetic preventing system in terms of earthquake losses is established in this paper by using fuzzy mathematics.
首先根据自然灾害经济损失的特点，对自然经济损失进行了比较合理的界定和分类，在此基础上着重对自然灾害直接经济损失和间接经济损失的评估理论和方法进行了探讨。
Based on the characteristics of natural disaster law, the paper studies the classification of the disaster loss. Then it mainly discusses the assessment methods of economic loss of natural disaster.
应用评估模型进行各级灾害农作物经济损失的评估，通过统计值和实际对照，证实评估模型的客观性和可行性。
The evaluation model of crop economic loss is formed after comparing disaster index with crop economic loss. At last the objectivity and reliability of the model is proved.
应用MATLAB6.5神经网络工具箱，建立了适用于震后经济损失快速评估的三层BP神经网络地震灾害经济评估模型。
With the ANN toolbox of MATLAB6.5, a three-layer BP network model for earthquake economic loss estimation is built up. This model is applicable to fast estimation of post-quake economic loss.
只有一点，原文说“不久之前，国家环保部还在试图量化评估环境污染所导致的经济损失，但未能成功。”
I just have one point to make; the article says "the memory of a failed attempt to quantify economic losses attributable to environmental harms is still fresh in the MEP's memory."
只有一点，原文说“不久之前，国家环保部还在试图量化评估环境污染所导致的经济损失，但未能成功。”
I just have one point to make; the article says "the memory of a failed attempt to quantify economic losses attributable to environmental harms is still fresh in the MEP's memory."
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