Tree-ring measurements of Pseudotsuga menziesii (Douglas-fir) from sample BEA...
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Species PSME; No of rings 186; Begin 1798; End 1983
物种PSME;环数186;起始年份1798;终止年份1983

Species PSME; No of rings 186; Begin 1798; End 1983
物种PSME;环数186;起始年份1798;终止年份1983