According to the characters of water saving irrigation ,the paper discussed the necessity of the application of decision support systems to this kind of irrigation.

The powder metallurgy tool steels produced by Dneprospetsstal Works/Ukrane are described,with the technology of production,varieties,size of products,and technical specifications.

The research object of this ariticle is about the Inverter Constant Pressure Water Supply System of Directional Solidification System (DSS).

Fluctuation law of oil product market prices and situation analysis of the petroleum industry for WTO entry;

Virtual instrument technique and its application to measure the water content in oil product;

A novel activated carbon supported metals catalyst was developed for sweetening of oil products at normal temperature.

A Brief Analysis of Safety Problem from "Transitional Loading of Oil" in Oil Products Transportation;

Discuss on the control measure of the evaporation loss in the oil products sale system.;