Tree-ring measurements of Picea engelmannii (Engelmann spruce) from sample CE...
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Species PCEN; No of rings 212; Begin 1772; End 1983
物种PCEN;年轮数:212;起始年份:1772;终止年份:1983

Species PCEN; No of rings 212; Begin 1772; End 1983
物种PCEN;年轮数:212;起始年份:1772;终止年份:1983