Tree-ring width of Quercus species from historical object sample 5777B/09A, N...
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Species: Quercus species; No of rings: 49; first year: 1734; end year: 1783; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 15; Last ring...
物种：栎属（Quercus）物种；年轮总数：49；起始年份：1734；结束年份：1783；髓心：不适用；心材：完整；边材：完整；边材年轮数：15；最后一环……
