what is void space and head space of a container

3:38

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3:38

42:21

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53:13

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12:56

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9:36

2:17

15:37

5:23

کوتاه

2:54

10:45

1:31

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10:44

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7:40

4:01

11:00

12:58

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3:45

کوتاه

10:05

2:23

7:05

2:23

30:29

4:44

7:50