XML-file of tree-ring width from historical object 6640B@en
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资源简介：
Species: Quercus species; No of rings: 100; first year: 1623; tree-death year: 1723; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 16; Last ring under bark: present
创建时间：
2026-04-24
