Using the data set of monthly mean temperature and precipitation at 34 stations in Chongqing in 1959—2003,the utilizable precipitation was calculated based on the Takahashi s evaporation equation.

Using data set of monthly precipitation and temperature from 1961 to 2002 at 80 stations in Northeast China, the utilizable precipitation were calculated based on Takahashi s evaporation equation and the relationship of water balance.

The article analyzed the actuality,value and availability of these gangues,which conduces to develop the comprehensive utilization in ferrous metal industry.

The availability of various Cu fractions in plant-soil system and its inducing effect were studied by partial dissolution procedure and stimulated Cu forms.

Combined use of stilamine with glypressin in the treatment of major hemorrhage of upper digestive tract;

The efficacy and cost effectiveness of glypressin, somatostatin and octreotide in the treatment of esophageal variceal bleeding (EVB) in cirrhotic patients were compared.

Determining available water resources is the basis of sustainable development and utilization of water resources.

Start with setting the concept of available water resources,this paper puts forward the calculation matheds for available surface water resources and total available water res.

Wind electric power generation as the twenty-first century reproducible clean environmental protection sources of energy is regarded highly by governments of all countries in the world day by day, choosing the proper wind-driven generator sets, ensuring the power generation capacity and use ratio of the unit are the concerned problems of every wind electric field.