XML-file of tree-ring width from historical object 2130B@en
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资源简介：
Species: Quercus species; No of rings: 50; first year: 1231; end year: 1281; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
创建时间：
2026-04-20
