Tree-ring width of Quercus species from historical object sample 5939B/09A, N...
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Species: Quercus species; No of rings: 20; Age not determined; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 2; Last ring under bark:...
物种：栎属（Quercus）物种；年轮数：20；树龄未测定；髓（Pith）：不适用；心材（Heartwood）：完整；边材（Sapwood）：不完整；边材年轮数：2；树皮下的最后一轮年轮：……
