Influences of pollution of Liangshui River on soil and groundwater;

Soil heavy metal accumulation and speciation in a sewage-irrigated area along the Liangshui River, Beijing;

Study on the composition and structure of soil macro faunas in Liangshui Natural Reserve;

Based on the comprehensive analysis for the working condition of cooling water tower, it was pointed out in this article that to carry out maintenance of the equipment in purpose and to change periodic maintenance to predictable maintenance can make cost decrease and make profit increase.

There have been some outstanding problems of circulating water management:hardware equipment in the circulating waterworks are old and aging,the bottom of the cooling water tower does not have evacuating equipment,so the mud cannot be drained.

This paper analyzes thc reasons for the corrosion and permeation of reinforced concretefor cooling tower by circulation water and air in fertilizer plant,presents measures against the prob-lems.

The main faults of DN-2500 cooling towers,such as blockage of sprinkling system,icing of packing and so on were briefly introduced,and the causes were analyzed.

Method of removing pathogenic heat from blood and inducing diuresis is be used to treat the excess syndrome,supporting vital qi and inducing diuresis for deficiency syndrome.