Modern pollen data from Tauber and Tuffy samplers from the Canadian Arctic (1...
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1 = pollen samples were only scanned and the presence of pollen noted (= present)
1 表示仅对花粉样本(pollen samples)执行扫描操作,且已记录花粉存在(等价于【存在】)

1 = pollen samples were only scanned and the presence of pollen noted (= present)
1 表示仅对花粉样本(pollen samples)执行扫描操作,且已记录花粉存在(等价于【存在】)