Tree-ring width from historical object sample 5706B/08M, Netherlands, Groningen
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Species: not given; No of rings: 84; Age not determined; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
物种：未提及；年轮数：84；年龄未测定；髓心（Pith）：不适用；心材（Heartwood）：不存在；边材（Sapwood）：不存在；边材年轮数：0；树皮下最晚年轮：不存在
