Tree-ring width of Quercus species from historical object sample 6490B/09A, N...
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Species: Quercus species; No of rings: 44; Age not determined; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 12; Last ring under bark:...
物种：栎属物种（Quercus species）；总年轮数：44；树龄未测定；髓心（Pith）：不适用；心材（Heartwood）：完整；边材（Sapwood）：完整；边材年轮数：12；树皮下的最晚年轮：……
