采样次数

a1

a2

a3

b1

b2

b3

c1

c2

c3

均值

1

28.9

27.1

27.4

27.4

30.5

33.8

34.7

37.9

36.3

31.6

2

30.7

31.3

29.8

32.4

31.1

33.5

35.6

48.2

32.4

33.9

3

47.3

46.7

43.1

23.8

26.5

24.3

22.7

21.4

23.4

31.0

4

30.4

28.7

28.5

32.3

34.2

33.4

37.5

37.2

35.3

33.1