サウンディング

• 00:10
• 00:40
• 01:10
• 01:40
• 02:11
• 02:41
• 03:11
• 03:41
• 04:12
• 04:42
• 05:12
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• 06:12
• 06:43
• 07:13
• 07:43

Sounding with a few rods, up to 13/14mm