poor relation
5.By studying the internal relation of between structure, properties and the waterproof function and anti-fungus capability of CCF, and analyzing the mechanism of vapor-absorption, water-absorption and mildewing, this paper find out the reasons resulted in the poor waterproof function and anti-fungus capability of CCF.
6.Through the statistics and analysis of runoff and amount of sand lost in the downstream of Weihe in recent years, it is discovered that in the downstream of Weihe the magnitude sand season was ahead of the main flood season relatively within the year; Variation tendency of annual runoff and amount of sand lost was identical basically , and the quantity of water and sand at Huaxian gauging station was tailing-off continuously from the 1960 to 2005; There was direct relation between the situation of rushing or silting deposits and rainfall at this section of the river: The river depositing in the year which is rich rainfall, the eroding in the poor rainfall.
