XML-file of tree-ring width from historical object 6640B
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资源简介：
Species: Quercus species; No of rings: 68; first year: 1657; tree-death year: 1725; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 14; Last ring under bark: present
创建时间：
2025-11-12
