trend percentage
1.In addition,the relations between the the molecular weight distribution,the Ca2+-promoted absorbency ability and the r(N/P) of CPPs were investigated,it indicated that the r(N/P) of each CPPs was less,the better was its Ca2+-promoted absorbency ability and also the r(N/P) of CPPs trend to reduce while the percentage of the components with a molecular weight less than 5 000 u increased.
2.on the contrary, the difference of the needle length is remarkable in the mentioned groups, the mean length of needle is trend to shorter with the latitude increasing, the percentage of needle length in lower class(6-9cm) increases and the needle length in higher class(l l-16cm) is on the contrary with the elevation raising.
3.Come to the road vehicle breakdown,Circadian variation and variation Week .Use of equivalent continuous A levels and the cumulative percentage of the level of traffic noise test evaluation ,Proportional prediction right Sontu Street next five years, the traffic noise trend forecast.

