以下为句子列表：
英文: A method of estimating the age of wood called dendrochronology was used to establish that the panel on which the image was painted dated back to between 1560 and 1592, the National Portrait Gallery in London said.
中文: 伦敦国家肖像美术馆指出，一种称为「树木年代学」的树木年轮推估法，被用来确认画像绘板的年代可溯及1560至1592年之间。
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英文: Dendrochronology A method of archaeological dating by the ANNUAL RINGS of tree, used when the lifespans of living and fossil trees in an area overlap.
中文: 树木年代学：在一定的区域内当生活树木以及化石树木的寿命有重叠时，通过树木的年轮来推测考古学年代的方法。
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