Treatment of low temperature and low turbidity raw water with compact flofilter of dissolved air flotation and GAC deep bed filtration by direct filtration;

Test for direct filtration of raw water with a fiber bundle filter medium under microflocculation;

Applied study on the micro-flocculation direct filtration process in reuse of industrial wastewater;

Examining the New Economic Policy of Soviet Union from the view of human right,we can draw a conclusion that the "direct transition"theory and practice which represented by the wartime communist policy took a negative attitude to the landed farmers request on their right to free trade of their surplus grain,which,to a certain extent,committed a mistake of departing from agricultural people.

In particular,he initiated the theory of "direct transition" adopted by the relevant departments,which became an important national policy.

It also designs a compact unequal power divider and solves the problem of vertical transition of multi-layer network that can greatly reduce the volume of feed network.

On the basis of aperture-coupling,adoping the vertical transition from coaxial line to microstrip line,this new type of dual-polarization antenna,retaining the inherent merit of the slot-coupled patch antenna is designed,which not only improve the cross-polarization and isolation,but also save great space in the array,it is very suitable to be the antenna cell.

The T-S graph dealt with ideal gas straight line process has been adopted in this paper.

The heat and temperature variations of straight line process in P-V graph of the ideal gas with neg ative slope has been discussed.