chemistry types of solid

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3:07

1:25

3:21

21:25

20:31

3:20

9:53

5:29

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8:36

9:39

8:35

9:12

21:04

13:37

10:15

4:35

4:40

1:36

1:36

41:42

23:17

10:51

5:22

1:42

3:50

3:43

2:31

3:46

2:01

کوتاه

کوتاه

2:22

7:52

1:06

2:17

1:27