The paper has studied on the course of ski tourism, natural geographical conditions, the construction of ski area, tourist market at home and abroad.

A study on modeling the terminal lake of Shiyang River Drainage Basin under the natural conditions;

The natural conditions in Xinjiang are very complex.

Analysis of natural condition and seabed evolution of Huachang Bay;

In course of harnessing the Fenhe River and reconstructing the coking plants, in the light of the specific situation in Shanxi province lillustrates the decisive elements in location selecting of the expanded or newly - built coking plants of large or medium size,in 3 respects of the transportaion, influencial factors of the natural condition and the way-out of the furnance gas.

It represents the contents and characters of terrene ism,lists the three representative persons who insist in terrene ism,main analyses and introduces the Barragan,a Mexican architect and his works characters from the background,natural condition,field,the traditional culture and color,to make us know his characters deeply.

The use and maintenance of the military generating set in all kinds of natural environment;

In natural environment, organisms evolution along to be more adapted for their environment.

In this paper,according to the theory of fuzzy mathematics,I have explored some principles and methods of valuation on natural geological conditions of mines which affect directly the economic effect of coal mining and production.