XML-file of tree-ring width from historical object 6691B
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资源简介：
Species: Quercus species; No of rings: 137; first year: 1432; tree-death year: 1569; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 23; Last ring under bark: absent
创建时间：
2025-11-20
