The development state and features of the stealth aircraft are introduced. Some stealth aircrafts, such as F-117,B-2,F-22 made in America and Mig 1.44,Su-35 mad e in Russia, are summarized. The development trend of stealth aircraft in the 21 st century is analyzed.
It reviewed the development state of special learning subject network station in abroad and at home and teaching mode under the environment of special learning subjects network station from aspects of background, characteristics, sense, theoretical basis of network station of special learning subjects and so on.
This paper discusses the development state of the modern frequency synthetic technology generally, then introduces and analyzes the main kinds of frequency synthesizer and their kcy technology.
This paper first introduces the development state of Chongqing's Chao Tianmen market, then analyzes the market's roles and problems existed during its development, and finally proposes the market's basic orientation and development prospect.
Although there is no universally accepted theory and model, recent studies indicate that the wind stress strongly depends on the development state of sea waves, i.
Next, the development state of applications will be described in more detail.
In parallel the development state of gonads was determined by histological analysis and a biochemical method.
However, the development state of the control 'young' animals must be considered first.
This paper describes the development state of functional Polymer film material. It indicates the relationship between the structure of film material and the function of ones by the research of chemical structure factor, physical structure factor and the structure of microphase separation. It provides with theoretical foundation for the study of molecular design and synthesis ot functional polymer film material.
This paper describes the concept of data structure and the development state abroad, analyses and studies the basic contents, type, structure and form of CAD integrated engineering of ground-to-air missile. It offers a good reference for further research on data structure and form of CAD integrated engineering of ground-to-air missile to draw up corresponding standards and norms.
Through the analysis of the development state of industry and urban in Shandong province,this paper expounds the influencing relation of industry and urban,puts forword a proposal about the future development of industry and urban in Shandong province:With the development of Communication corridor,the province will become a skeleton of urban network with three horizontal Limes and three col umns;With the dependence on central cities,the province will become a series of varied kinds of industrial...
Through the analysis of the development state of industry and urban in Shandong province,this paper expounds the influencing relation of industry and urban,puts forword a proposal about the future development of industry and urban in Shandong province:With the development of Communication corridor,the province will become a skeleton of urban network with three horizontal Limes and three col umns;With the dependence on central cities,the province will become a series of varied kinds of industrial combination—urban groups; With the topping potontialities of local areas,most urbans will tend to a variety of forms of functional structure;With the needs of the development of economic and society,the province will become a combined system of urbans;With the suitable policy,the province will seduce the distinction of industry and urban development among local areas.