Tree-ring width of Quercus species from historical object sample 6631B/04A, Netherlands, Alkmaar
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Species: Quercus species; No of rings: 29; Age not determined; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 1; Last ring under bark: absent
物种：栎属（Quercus）物种；年轮总数：29；年龄未测定；髓心：不适用；心材：完整；边材：不完整；边材年轮数：1；树皮内最后一圈年轮：缺失
创建时间：
2025-11-03
