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| Description: The piston creates a tumbling force as it moves upward.
Picture Stats: Views: 278 Filesize: 92.48kB Height: 434 Width: 412 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=30024 |
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| Description: The piston creates a tumbling force as it moves upward.
Picture Stats: Views: 278 Filesize: 92.48kB Height: 434 Width: 412 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=30024 |