how to stack spectra in origin

5:11

16:20

5:26

14:07

کوتاه

19:25

4:28

3:13

3:23

کوتاه

9:25

16:08

16:08

2:15

16:39

1:06

8:52

7:58

2:47

4:57

10:14

5:48

5:51

کوتاه

1:16

2:35

5:54

4:20

8:49

10:44

4:56

7:00

6:13

4:25

14:57

5:52

22:34

4:58

3:08

کوتاه