采样次数

a1

a2

a3

b1

b2

b3

c1

c2

c3

均值

1

21.2

20.6

22.8

20.4

20.0

20.6

25.3

20.4

30.1

22.4

2

21.3

20.0

25.7

26.8

22.8

23.4

23.5

25.5

20.8

23.3

3

43.2

42.0

46.5

13.4

11.4

19.7

10.7

42.3

45.3

30.5

4

20.2

21.9

22.3

20.9

16.8

19.5

22.3

25.6

20.0

21.1