The results of consumers’car purchasing in China showed that MNL reflected the relationship between the consumer characteristics and the selection of type of primary preference well, and that the primary preference in car purchasing changed with the .

The paper introduces the current situation of the development and the use of domestic and international taphole clay,and analyzes the main factors that influence the quality of tap-hole clay,putting forward the method for improving the quality of tap-hole clay and its developmental trend.

On the basis of a lot of literatures,the main factors which affect the skid resistance of asphalt pavement are analysed,the measures of improving the shid-proof character of asphalt pavement are induced.

The results showed that the rising in price of corn is the main factor which influence on the production cost of formula feed.

Analysis of The Main Factors Soft Volleyball Sport Rapidly Popularizhing in China;

The main factors influencing the formation of beer chill haze included iron ion, dissolved oxygen, pH value, and CO2 etc.

By analyzing the causes of weft stop,this paper puts forward the main factors of affecting the weaving efficiency of air-jet loom and the measures of improving weaving efficiency according to the breakdown records of air-jet loom in practical production.