Tree-ring width of Quercus species from historical object sample 6557B/01A, N...
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Species: Quercus species; No of rings: 27; Age not determined; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 3; Last ring under bark:...
物种：栎属（Quercus）植物；年轮数：27；未测定树龄；髓心：不适用；心材：完整；边材：不完整；边材年轮数：3；树皮下方的最后一轮年轮：……
