system model in os

1:44:45

2:25:30

2:08:31

4:44

16:41

1:50

48:48

4:39

کوتاه

8:36

کوتاه

1:01

4:39

3:21

1:30

5:23

1:40

6:31

1:53

4:26

1:27

5:13

7:02

20:17

1:47:56

8:10

1:27

8:35

7:47

کوتاه

14:37

9:12

20:03

8:31

3:48

20:41

20:41

20:09

4:03

2:12