时间(天)

L

a

b

ΔE

0

−14.2560

−0.3674

−0.3423

0

1

17.0749

−9.7913

−2.7058

31.8934

2

16.1011

−9.1092

−2.8300

31.6431

3

15.3826

−13.3266

−4.0205

31.4034

4

13.1825

−14.5796

−5.5492

31.0018

5

12.5723

−15.3357

−6.0557

30.8152

6

11.1196

−17.2261

−6.0557

29.9659

7

11.4110

−16.6636

−6.3120

29.9964

8

9.9185

−16.9973

−5.4371

29.8511

9

11.9396

−12.7011

−5.1511

29.8876

10

10.9385

−13.5721

−5.3721

29.8391