【摘要】 利用福建１０种主要树种法向吸声系数（ａ＿ｐ）的测定结果，探讨了法向吸声系数与入射声波频率（ｆ）的关系。回归分析发现ａ＿ｐ与ｆ满足：ａ＿ｐ＝ｂ＿０＋ｂ＿１ｆ＋ｂ＿２ｆ￣２＋ｂ＿３ｆ￣３，并且发现此关系式与树种、切面无关，可以认为是一个普遍规律。更多还原

【Abstract】 This study was carred out by use of the determination results of normal sound coefficients of wood（a_p）for 10 major tree species from Fujian.The regression analysis of a_p and audio frequencies（f）showed that the formula a_p=b₀+b₁f+b₂f￣2+b₃f￣3 is fit for actual conditions,which not only has not any relation to the tangent plane of wood but also can be regarded it as a general law.更多还原