中心直径（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