optical communication full course

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38:35

کوتاه

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5:15

7:43

3:25

کوتاه

2:25

4:16

10:50

2:06

1:58

3:48

7:14

5:16

5:00:13

2:45

10:08

کوتاه

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12:00:00

کوتاه

27:50

2:05:37

کوتاه

12:00:00

27:51

5:30

15:30

کوتاه

6:14:06

7:09

52:39

4:00:00

7:25

7:42

کوتاه

1:39:26

5:56:36