Tree-ring measurements of Pseudotsuga menziesii (Douglas-fir) from sample BEA...
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Species PSME; No of rings 192; Begin 1792; End 1983
物种PSME;环数192;起始年份1792;终止年份1983

Species PSME; No of rings 192; Begin 1792; End 1983
物种PSME;环数192;起始年份1792;终止年份1983