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2026-01-19

“extine”的英文意思

单词 extine
释义 extine Bot.|ˈɛkstɪn, -taɪn|
[f. L. ext- (in extimus most outward, f. ex-) + -ine1.]
The outer membrane of the pollen grain. Also exine.
1835Lindley Introd. Bot. (1848) I. 358 The shell of the pollen-grain..has been ascertained to consist..of two or even three membranes, of which the outer (extine) is thicker than the inner (intine).1882Vines Sachs' Bot. 505 The contents [of pollen grains] enclosed by an extine and intine, divide into two cells.
“extine”的英文意思

 

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