| 单词 | rake dredge | 
| 释义 | > as lemmasrake dredge   rake dredge  n. now rare a dredge (dredge n.1) fitted with a toothed edge, used for collecting natural history specimens. ΚΠ 1876    G. B. Goode Classif. Coll. Illustr. Animal Resources U.S. 36  				Dredges..Rake-dredge. 1883    Science 18 May 418/1  				The latest improvements in sounding and dredging apparatus are represented..Among these are..Mr. Benedict's rake-dredge for annelids. 1935    Ecol. Monogr. 5 116  				Bottom samples for qualitative study were taken with a rake dredge, while for quantitative work a Birge-Eckman dredge..was employed. < as lemmas | 
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