In this paper, the work principle of hydraulic breakers is analyzed, the results prove that the hydraulic breaker operated by combined work of gas and hydraulic is not only reasonable in structure but also has the characteristics of long piston life and high system efficiency.

This paper has a comprehensive description on anthocyanin,elaborating on the structu-re,properties,the safety and functions,sources of anthocyanin,especially on the bioava-ilability and consumption in animal and human,hoping that it will contribute to the research on some aspects concerned in the future.

This article reviews the functions of mineral ultrafines and its causes and techniques such as ultra-fine crushing and surface modification.

In this paper, the author makes researches on the characteristics of the traditional building decorations with woodcarving in our country and its functions in modern environmental designs, so as to improve its traditional technology and weed through the old to bring forth the new in modern designs.

This essay particularly introduces the evolution, function, space construction and actualization strategy of overseas city-farm to use for reference, which can promote the development of city-farm construction.

This paper expounds market economy from the views of its historical position,common features,functions and so on.

To give full play to the function of the socialist core value system in the constructio.

A Prediction Method for Brisance and Power of Industrial Explosive;

The detonation velocity and power tested in the same condition.

Ballistic projectile method is adopted to study the power of industrial aluminiferous explosive in this paper,in order to study the detonation and formulating of industrial aluminiferous explosive and to improve the production technique,some methods about estimating and testing are proposed which accord with the trait of detonation and power of industrial aluminiferous explosiv

Objective To study the effect of hypertension in cardiac work and oxygen consump-tion of the myocardium.

Aim: To approach the effects of multi-site synchronous ventricular paci ng on myocardial mechanics and cardiac work.

In this paper the auther analyses the example of work done by maganetic forces,points out the established condition of the formula A=I△Φ and obtains more general formula of work done by maganetic forces following the differential equation group round the loop.