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单词 resin duct
释义

> as lemmas

resin duct
resin duct n. = resin canal n.
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the world > plants > part of plant > plant substances > [noun] > gum or resin > production or part producing
gummage1610
resin duct1854
resinosis1884
1854 Q. Jrnl. Geol. Soc. 10 ii. 4 In form the amber is either like drops,..or as the casts of resin-ducts and cavities.
1914 J. J. Levison Stud. of Trees viii. 222 The woods of the pines, spruces, larches, and Douglas fir differ from those of the other conifers in having resin ducts.
1997 I. D. Gourlay in A. Farjon & B. T. Styles Pinus (Pinaceae) 31/1 The genus Pinus is readily distinguished from other genera by the presence of resin ducts distributed throughout the growth ring and surrounded by thin-walled epithelial cells.
extracted from resinn.adj.
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