By analyzing and correcting the paradox model of tourism demand which was put by America economist Veblen, and inspection of the Giffen Goods condition, the author creates an innovative concept: counter Giffen goods and sets up a new model which can realize two noumenon principle-people-focused and ecosystem-focused- in tourism development.

Study on construction basic principle of harbor in the Three Gorges reservoir;

The basic principle of disposition design about structure crossing over river above the navigable river;

The basic principle of manufacturing line management in semiconductor enterprise;

Basic Principles of the Computer Innovation Education;

The basic principles of ethnic cultural development——With the case of autonnomous prefecture of Miao and Dong nationalities in south - east Ghuizhoou;

Development and Improvement to the basic principles of constitution in China;

On Fundamental Principles of Establishing Political Civilization;

Fundamental principles of Security Supervision Legal System;

Current Developments on Fundamental Principles in International Criminal Law

Unity of Science and Value Is the Fundamental Principle of Science Development View;

Theoretical Basis and Fundamental Principle Study of the Animal Welfare Law;

In the paper, based on the basic safety standards summarizes the fundamental principle and the protection measurements ofthe electronic equipments with regard to protection against electrical shock , which can be used as a guide to the safety design andthe safety tests of the electronic equipments.

According to the situation of agricultural environment in our country, the fundamental principles and some issues of Agricultural Environmental Protection Law are discussed in the paper.

Then principles and noticeable problems in planning are presented.

The principle of selecting and evaluating cable equipment and the methods to make economic analysis and evaluation of them are outlined.