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exine
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常见例句
exine
[ˈɛksɪn, -ʌɪn]
noun
(Botany)the decay-resistant outer coating of a pollen grain or spore. It typically bears a highly characteristic surface pattern which is used in palynology
(植)花粉粒外壁;孢子外壁;(芽孢)外壁
语源
late 19th cent.: perhaps from ex- 'out' + Greek
is
,
in-
'fibre'
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