中央直径（cm）	材         长 （m）
	2.0	2.5	3.0	3.5	4.0	4.5	5.0	6.0	7.0	8.0
	材         积  （m3)
100	1.571	1.964	2.356	2.749	3.142	3.534	3.927	4.712	5.498	6.283
98	1.509	1.886	2.263	2.640	3.017	3.394	3.771	4.526	5.280	6.034
96	1.448	1.810	2.171	2.533	2.895	3.257	3.619	4.343	5.067	5.791
94	1.388	1.735	2.082	2.429	2.776	3.123	3.470	4.164	4.858	5.552
92	1.330	1.662	1.994	2.327	2.659	2.991	3.324	3.989	4.653	5.318
90	1.272	1.590	1.909	2.227	2.545	2.863	3.181	3.817	4.453	5.089
88	1.216	1.521	1.825	2.129	2.433	2.737	3.041	3.649	4.257	4.866
86	1.162	1.452	1.743	2.033	2.324	2.614	2.904	3.485	4.066	4.647
84	1.108	1.385	1.663	1.940	2.217	2.494	2.771	3.325	3.879	4.433
82	1.056	1.320	1.584	1.848	2.112	2.376	2.641	3.169	3.697	4.225
80	1.005	1.257	1.508	1.759	2.011	2.262	2.513	3.016	3.519	4.021
78	0.956	1.195	1.434	1.672	1.911	2.150	2.389	2.867	3.345	3.823
76	0.907	1.134	1.361	1.588	1.815	2.041	2.268	2.722	3.176	3.629
74	0.860	1.075	1.290	1.505	1.720	1.935	2.150	2.581	3.011	3.441
72	0.814	1.018	1.221	1.425	1.629	1.832	2.036	2.443	2.850	3.257
70	0.770	0.962	1.155	1.347	1.539	1.732	1.924	2.309	2.694	3.079
68	0.726	0.908	1.090	1.271	1.453	1.634	1.816	2.179	2.542	2.905
66	0.684	0.855	1.026	1.197	1.368	1.540	1.711	2.053	2.395	2.737
64	0.643	0.804	0.965	1.126	1.287	1.448	1.608	1.930	2.252	2.574
62	0.604	0.755	0.906	1.057	1.208	1.359	1.510	1.811	2.113	2.415
60	0.565	0.707	0.848	0.990	1.131	1.272	1.414	1.696	1.979	2.262
58	0.528	0.661	0.793	0.925	1.057	1.189	1.321	1.585	1.849	2.114
56	0.493	0.616	0.739	0.862	0.985	1.108	1.232	1.478	1.724	1.970
54	0.458	0.573	0.687	0.802	0.916	1.031	1.145	1.374	1.603	1.832
52	0.425	0.531	0.637	0.743	0.849	0.956	1.062	1.274	1.487	1.699
50	0.393	0.491	0.589	0.687	0.785	0.884	0.982	1.178	1.374	1.571
48	0.362	0.452	0.543	0.633	0.724	0.814	0.905	1.086	1.267	1.448
46	0.332	0.415	0.499	0.582	0.665	0.748	0.831	0.997	1.163	1.330
44	0.304	0.380	0.456	0.532	0.608	0.684	0.760	0.912	1.064	1.216
42	0.277	0.346	0.416	0.485	0.554	0.623	0.693	0.831	0.970	1.108
40	0.251	0.314	0.377	0.440	0.503	0.565	0.628	0.754	0.880	1.005
38	0.227	0.284	0.340	0.397	0.454	0.510	0.567	0.680	0.794	0.907
36	0.204	0.254	0.305	0.356	0.407	0.458	0.509	0.611	0.713	0.814
34	0.182	0.227	0.272	0.318	0.363	0.409	0.454	0.545	0.636	0.726
32	0.161	0.201	0.241	0.281	0.322	0.362	0.402	0.483	0.563	0.643
30	0.141	0.177	0.212	0.247	0.283	0.318	0.353	0.424	0.495	0.565
28	0.123	0.154	0.185	0.216	0.246	0.277	0.308	0.369	0.431	0.493
26	0.106	0.133	0.159	0.186	0.212	0.239	0.265	0.319	0.372	0.425
24	0.090	0.113	0.136	0.158	0.181	0.204	0.226	0.271	0.317	0.362
22	0.076	0.095	0.114	0.133	0.152	0.171	0.190	0.228	0.266	0.304
20	0.063	0.079	0.094	0.110	0.126	0.141	0.157	0.188	0.220	0.251
18	0.051	0.064	0.076	0.089	0.102	0.115	0.127	0.153	0.178	0.204
16	0.040	0.050	0.060	0.070	0.080	0.090	0.101	0.121	0.141	0.161
14	0.031	0.038	0.046	0.054	0.062	0.069	0.077	0.092	0.108	0.123
12	0.023	0.028	0.034	0.040	0.045	0.051	0.057	0.068	0.079	0.090
10	0.016	0.020	0.024	0.027	0.031	0.035	0.039	0.047	0.055	0.063
8	0.010	0.013	0.015	0.018	0.020	0.023	0.025	0.030	0.035	0.040
6	0.006	0.007	0.008	0.010	0.011	0.013	0.014	0.017	0.020	0.023

中央直径（cm）	材         长 （m）
	9.0	10.0	11.0	12.0	13.0	14.0	15.0	16.0	17.0	18.0
	材         积  （m3)
100	7.069	7.854	8.639	9.425	10.210	10.996	11.781	12.566	13.352	14.137
98	6.789	7.543	8.297	9.052	9.806	10.560	11.314	12.069	12.823	13.577
96	6.514	7.238	7.962	8.686	9.410	10.134	10.857	11.581	12.305	13.029
94	6.246	6.940	7.634	8.328	9.022	9.716	10.410	11.104	11.798	12.492
92	5.983	6.648	7.312	7.977	8.642	9.307	9.971	10.636	11.301	11.966
90	5.726	6.362	6.998	7.634	8.270	8.906	9.543	10.179	10.815	11.451
88	5.474	6.082	6.690	7.299	7.907	8.515	9.123	9.731	10.340	10.948
86	5.228	5.809	6.390	6.971	7.551	8.132	8.713	9.294	9.875	10.456
84	4.988	5.542	6.096	6.650	7.204	7.758	8.313	8.867	9.421	9.975
82	4.753	5.281	5.809	6.337	6.865	7.393	7.922	8.450	8.978	9.506
80	4.524	5.027	5.529	6.032	6.535	7.037	7.540	8.042	8.545	9.048
78	4.301	4.778	5.256	5.734	6.212	6.690	7.168	7.645	8.123	8.601
76	4.083	4.536	4.990	5.444	5.897	6.351	6.805	7.258	7.712	8.166
74	3.871	4.301	4.731	5.161	5.591	6.021	6.451	6.881	7.311	7.742
72	3.664	4.072	4.479	4.886	5.293	5.700	6.107	6.514	6.922	7.329
70	3.464	3.848	4.233	4.618	5.003	5.388	5.773	6.158	6.542	6.927
68	3.269	3.632	3.995	4.358	4.721	5.084	5.448	5.811	6.174	6.537
66	3.079	3.421	3.763	4.105	4.448	4.790	5.132	5.474	5.816	6.158
64	2.895	3.217	3.539	3.860	4.182	4.504	4.825	5.147	5.469	5.791
62	2.717	3.019	3.321	3.623	3.925	4.227	4.529	4.831	5.132	5.434
60	2.545	2.827	3.110	3.393	3.676	3.958	4.241	4.524	4.807	5.089
58	2.378	2.642	2.906	3.171	3.435	3.699	3.963	4.227	4.492	4.756
56	2.217	2.463	2.709	2.956	3.202	3.448	3.695	3.941	4.187	4.433
54	2.061	2.290	2.519	2.748	2.977	3.206	3.435	3.664	3.893	4.122
52	1.911	2.124	2.336	2.548	2.761	2.973	3.186	3.398	3.610	3.823
50	1.767	1.964	2.160	2.356	2.553	2.749	2.945	3.142	3.338	3.534
48	1.629	1.810	1.991	2.171	2.352	2.533	2.714	2.895	3.076	3.257
46	1.496	1.662	1.828	1.994	2.160	2.327	2.493	2.659	2.825	2.991
44	1.368	1.521	1.673	1.825	1.977	2.129	2.281	2.433	2.585	2.737
42	1.247	1.385	1.524	1.663	1.801	1.940	2.078	2.217	2.355	2.494
40	1.131	1.257	1.382	1.508	1.634	1.759	1.885	2.011	2.136	2.262
38	1.021	1.134	1.248	1.361	1.474	1.588	1.701	1.815	1.928	2.041
36	0.916	1.018	1.120	1.221	1.323	1.425	1.527	1.629	1.730	1.832
34	0.817	0.908	0.999	1.090	1.180	1.271	1.362	1.453	1.543	1.634
32	0.724	0.804	0.885	0.965	1.046	1.126	1.206	1.287	1.367	1.448
30	0.636	0.707	0.778	0.848	0.919	0.990	1.060	1.131	1.202	1.272
28	0.554	0.616	0.677	0.739	0.800	0.862	0.924	0.985	1.047	1.108
26	0.478	0.531	0.584	0.637	0.690	0.743	0.796	0.849	0.903	0.956
24	0.407	0.452	0.498	0.543	0.588	0.633	0.679	0.724	0.769	0.814
22	0.342	0.380	0.418	0.456	0.494	0.532	0.570	0.608	0.646	0.684
20	0.283	0.314	0.346	0.377	0.408	0.440	0.471	0.503	0.534	0.565
18	0.229	0.254	0.280	0.305	0.331	0.356	0.382	0.407	0.433	0.458
16	0.181	0.201	0.221	0.241	0.261	0.281	0.302	0.322	0.342	0.362
14	0.139	0.154	0.169	0.185	0.200	0.216	0.231	0.246	0.262	0.277
12	0.102	0.113	0.124	0.136	0.147	0.158	0.170	0.181	0.192	0.204
10	0.071	0.079	0.086	0.094	0.102	0.110	0.118	0.126	0.134	0.141
8	0.045	0.050	0.055	0.060	0.065	0.070	0.075	0.080	0.085	0.090
6	0.025	0.028	0.031	0.034	0.037	0.040	0.042	0.045	0.048	0.051

中央直径（cm）	材         长 （m）
	19.0	20.0	21.0	22.0	23.0	24.0	25.0	26.0	27.0	28.0
	材         积  （m3)
100	14.923	15.708	16.493	17.279	18.064	18.850	19.635	20.420	21.206	21.991
98	14.332	15.086	15.840	16.595	17.349	18.103	18.857	19.612	20.366	21.120
96	13.753	14.476	15.200	15.924	16.648	17.372	18.096	18.819	19.543	20.267
94	13.186	13.880	14.574	15.268	15.962	16.656	17.349	18.043	18.737	19.431
92	12.630	13.295	13.960	14.625	15.290	15.954	16.619	17.284	17.949	18.613
90	12.087	12.723	13.360	13.996	14.632	15.268	15.904	16.541	17.177	17.813
88	11.556	12.164	12.772	13.381	13.989	14.597	15.205	15.814	16.422	17.030
86	11.037	11.618	12.199	12.779	13.360	13.941	14.522	15.103	15.684	16.265
84	10.529	11.084	11.638	12.192	12.746	13.300	13.854	14.409	14.963	15.517
82	10.034	10.562	11.090	11.618	12.146	12.674	13.203	13.731	14.259	14.787
80	9.550	10.053	10.556	11.058	11.561	12.064	12.566	13.069	13.572	14.074
78	9.079	9.557	10.035	10.512	10.990	11.468	11.946	12.424	12.902	13.379
76	8.619	9.073	9.527	9.980	10.434	10.888	11.341	11.795	12.248	12.702
74	8.172	8.602	9.032	9.462	9.892	10.322	10.752	11.182	11.612	12.042
72	7.736	8.143	8.550	8.957	9.364	9.772	10.179	10.586	10.993	11.400
70	7.312	7.697	8.082	8.467	8.851	9.236	9.621	10.006	10.391	10.776
68	6.900	7.263	7.627	7.990	8.353	8.716	9.079	9.442	9.806	10.169
66	6.500	6.842	7.185	7.527	7.869	8.211	8.553	8.895	9.237	9.579
64	6.112	6.434	6.756	7.077	7.399	7.721	8.042	8.364	8.686	9.008
62	5.736	6.038	6.340	6.642	6.944	7.246	7.548	7.850	8.152	8.453
60	5.372	5.655	5.938	6.220	6.503	6.786	7.069	7.351	7.634	7.917
58	5.020	5.284	5.548	5.813	6.077	6.341	6.605	6.869	7.134	7.398
56	4.680	4.926	5.172	5.419	5.665	5.911	6.158	6.404	6.650	6.896
54	4.351	4.580	4.809	5.038	5.268	5.497	5.726	5.955	6.184	6.413
52	4.035	4.247	4.460	4.672	4.885	5.097	5.309	5.522	5.734	5.946
50	3.731	3.927	4.123	4.320	4.516	4.712	4.909	5.105	5.301	5.498
48	3.438	3.619	3.800	3.981	4.162	4.343	4.524	4.705	4.886	5.067
46	3.158	3.324	3.490	3.656	3.822	3.989	4.155	4.321	4.487	4.653
44	2.889	3.041	3.193	3.345	3.497	3.649	3.801	3.953	4.105	4.257
42	2.632	2.771	2.909	3.048	3.187	3.325	3.464	3.602	3.741	3.879
40	2.388	2.513	2.639	2.765	2.890	3.016	3.142	3.267	3.393	3.519
38	2.155	2.268	2.382	2.495	2.608	2.722	2.835	2.949	3.062	3.176
36	1.934	2.036	2.138	2.239	2.341	2.443	2.545	2.646	2.748	2.850
34	1.725	1.816	1.907	1.997	2.088	2.179	2.270	2.361	2.451	2.542
32	1.528	1.608	1.689	1.769	1.850	1.930	2.011	2.091	2.171	2.252
30	1.343	1.414	1.484	1.555	1.626	1.696	1.767	1.838	1.909	1.979
28	1.170	1.232	1.293	1.355	1.416	1.478	1.539	1.601	1.663	1.724
26	1.009	1.062	1.115	1.168	1.221	1.274	1.327	1.380	1.434	1.487
24	0.860	0.905	0.950	0.995	1.040	1.086	1.131	1.176	1.221	1.267
22	0.722	0.760	0.798	0.836	0.874	0.912	0.950	0.988	1.026	1.064
20	0.597	0.628	0.660	0.691	0.723	0.754	0.785	0.817	0.848	0.880
18	0.483	0.509	0.534	0.560	0.585	0.611	0.636	0.662	0.687	0.713
16	0.382	0.402	0.422	0.442	0.462	0.483	0.503	0.523	0.543	0.563
14	0.292	0.308	0.323	0.339	0.354	0.369	0.385	0.400	0.416	0.431
12	0.215	0.226	0.238	0.249	0.260	0.271	0.283	0.294	0.305	0.317
10	0.149	0.157	0.165	0.173	0.181	0.188	0.196	0.204	0.212	0.220
8	0.096	0.101	0.106	0.111	0.116	0.121	0.126	0.131	0.136	0.141
6	0.054	0.057	0.059	0.062	0.065	0.068	0.071	0.074	0.076	0.079

中央直径（cm）	材         长 （m）
	29.0	30.0	31.0	32.0	33.0	34.0	35.0	36.0	37.0	38.0
	材         积  （m3)
100	22.777	23.562	24.347	25.133	25.918	26.704	27.489	28.274	29.060	29.845
98	21.875	22.629	23.383	24.138	24.892	25.646	26.400	27.155	27.909	28.663
96	20.991	21.715	22.439	23.162	23.886	24.610	25.334	26.058	26.782	27.505
94	20.125	20.819	21.513	22.207	22.901	23.595	24.289	24.983	25.677	26.371
92	19.278	19.943	20.608	21.272	21.937	22.602	23.267	23.931	24.596	25.261
90	18.449	19.085	19.721	20.358	20.994	21.630	22.266	22.902	23.538	24.175
88	17.638	18.246	18.855	19.463	20.071	20.679	21.287	21.896	22.504	23.112
86	16.846	17.426	18.007	18.588	19.169	19.750	20.331	20.912	21.493	22.074
84	16.071	16.625	17.180	17.734	18.288	18.842	19.396	19.950	20.505	21.059
82	15.315	15.843	16.371	16.899	17.427	17.956	18.484	19.012	19.540	20.068
80	14.577	15.080	15.582	16.085	16.588	17.090	17.593	18.096	18.598	19.101
78	13.857	14.335	14.813	15.291	15.769	16.246	16.724	17.202	17.680	18.158
76	13.156	13.609	14.063