Tree-ring measurements of Pseudotsuga menziesii (Douglas-fir) from sample SPR...
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Species PSME; No of rings 302; Begin 1682; End 1983
物种PSME;环数302;起始年份1682;结束年份1983

Species PSME; No of rings 302; Begin 1682; End 1983
物种PSME;环数302;起始年份1682;结束年份1983