extine
美['ekstaɪn] 英['ekstaɪn]
n. 外膜
例句
- The outer wall (extine) of the pollen grain is often diagnostic (see pollen) and very resistant to decay. 花粉粒外壁（花粉壁）通常为特异性的并很难腐烂。
- Most of local plate-nectarine, ornamental peach and weeping peach cultivars had simple extine pattern, which shows that they were original types. 供试材料的花粉粒形状以椭圆形为主，且首次发现哈太雷品种的花粉粒呈为圆球形。
- The pollen extine ornamentation of common bean and lima bean were reticulated, and the other three cultivars were foveolated-reticulated. 菜豆和小莱豆花粉外壁呈网状，而绿豆、小豆和长豇豆花粉外壁呈穴网状。
- Results showed that the pollen grain of P. mira, which is used as material by SEM for the first time, was nearly elliptic in shape and the extine pattern was simply striped with no pores. 结果表明，光核桃花粉粒的形态呈椭圆球形，其外壁纹饰呈简单的直纹平行型，无穿孔，是最原始的桃亚属植物野生种，未发现与栽培种有直接的关系。
- 3.Results showed that the pollen grain of P. mira, which is used as material by SEM for the first time, was nearly elliptic in shape and the extine pattern was simply striped with no pores. 结果表明，光核桃花粉粒的形态呈椭圆球形，其外壁纹饰呈简单的直纹平行型，无穿孔，是最原始的桃亚属植物野生种，未发现与栽培种有直接的关系。
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