Because of the external diseconomy and market failure, the government has to intervene the environmental problems.

First, it is pointed out that the economic source of the environmental problems is external diseconomy.

环境问题的经济根源在于其外部不经济性；

The environmental damage of tourism is in essence an external diseconomy of tourism.

旅游业对环境的负面影响实质上是旅游业的一种外部不经济性现象。

External diseconomy is the destruction to environment and resources caused by manufacturers production and management.

外部不经济性是由厂商在生产和经营过程中所造成的对环境的损害和资源的破坏。

The pollution problem is an external diseconomy alone to market failure.

污染问题属于经济学中市场失灵的外部性问题。

The determination of free amino acid and factory discrimination in wine ⅰ. application of multiple discriminant analysis to factory differentiation

葡萄酒中游离氨基酸的测定及产地判别Ⅰ多元判别分析在葡萄酒产地判别中的应用

Pattern Recognition Methods in Wine Analyses ⅱ. Original Must Content of Red Wine Identified by Multiple Discriminant Analysis

葡萄酒分析中模式识别方法的研究Ⅱ.原汁含量的多元判别分析

Optimal feature extraction and face recognition based on kernel machine-based one-parameter multiple discriminant analysis

基于核的多元区别分析算法的特征抽取及其在人脸识别中的应用

Naive Bayesian Classifier Based on Multiple Discriminant Analysis

基于多重判别分析的朴素贝叶斯分类器

Then it simply introduces Multiple Discriminant Analysis.

然后对多元判别分析方法给以简要的介绍。

Text Segmentation Model Based on Multiple Discriminant Analysis

基于多元判别分析的文本分割模型

A new method of multiple discriminant analysis

胆石症的多元判别分析一种新的多类判别方法

Firstly this paper introduced the principle of Fisher linear discriminant function, and then present the Subspace LDA algorithm which project the data that is in high dimension space to eigenspace that is in low space and then maximize discriminant coefficient.

本文介绍了Fisher线性判别准则原理和实现过程，然后引入Subspace LDA方法，用PCA将高维图像数据投影到低维的特征脸空间，再用LDA最大化判别系数。

Extraction and Discriminant of Non-contact Life Parameter Signal Based on Radar

雷达式非接触生命参数信号的提取及判别

A mathematical model on the interference of an over-wire measurement for the Archimedes screw ( worm) thread is established and a discriminant equation of the interference is presented.

本文建立了对称的阿基米德螺纹（蜗杆）跨线测量时发生干涉的数学模型，并导出干涉发生的判定公式。

The discriminant equation for a three-component mixing model of isotopes and trace elements and its application

同位素和微量元素的三元混合模式判据及其应用

The predictive accuracy of the discriminant equation was 83.9%.

按判别方程预测Ⅲ级腋淋巴结转移概率的总符合率为83.9%。

Establish a discriminant equation based on the glioma cDNA microarray expression data combined with statistical methods to predict and judge glioma samples. 3.

依据cDNA胶质瘤表达谱芯片数据结合统计学方法建立判别方程，对胶质瘤样本进行预测和判断。

The discriminant equation can better reflect the risk probability of fracture and has greater predictive significance.

判别方程能更全面反映骨折的危险性程度，预测意义较大。

The discretization error is analyzed through studies on characteristics of wave motion in the discrete model and their differences from those in the corresponding continuum.

基于在离散和连续模型中波动规律差别的分析，首先研究了离散化误差。

A new numerical method for the fractional integral that only stores part history data is presented, and its discretization error is estimated.

提出了一种只需要存储部分历史数据的分数积分的数值计算方法，并给出了误差估计。