So we can analyse the cause to damages . we testing the effect of treating dicase in sienal board with carbon aceous fibre in 2001 . and we also testing the feasible of affixing carbonaceous fibre to deal with it . we may search for the most reasonable , economic effect method 并检验2001年处治单板受力病害而进行碳纤维加固法的效果，验证粘贴碳纤维方法是否能够根治单板受力病害，来探求最合理、最经济、最有效的处治方法。
