| 单词 | pollen spectrum |
| 释义 | > as lemmaspollen spectrum pollen spectrum n. the relative frequencies of the various kinds of pollen in a sample. ΘΚΠ the world > plants > botany > [noun] > pollen analysis > diagrams or statistics pollen diagram1924 pollen spectrum1924 pollen profile1935 pollen graph1936 1924 G. Erdtman in Jrnl. Linn. Soc.: Bot. 46 453 The relative frequency-numbers..constitute the pollen-spectrum of the sample. 1993 Science 1 Jan. 47/3 The..arctic-alpine affiliations of the pollen spectra taken from several key lake cores. < as lemmas |
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