运转年数

q

r

年衰减率/%

预测下一年VMD

实测下一年VMD

误差比/%

3

19.077

−0.144

4.88

15.625

15.873

1.56

4

18.981

−0.129

4.09

15.422

15.565

0.92

5

18.911

−0.121

3.54

15.225

15.354

0.84

6

18.834

−0.114

3.08