英式：[ˈeksiːn]
美式：[ˈekˌsaɪn]
n.外膜；外壁
用作名词 (n.)
The ornamentation of exine is reticulate, reticulate-microperforate or microperforate. 外壁纹饰网状，某些种尚具或为细小的穿孔。
When the pollen grains were continuously rehydrated in vitro, the exine and intine will separate from the protoplasm, respectively. 将成熟花粉水合后，其细胞质膨胀，挤压花粉壁使其外壁与内壁，接续与细胞质分离。
sexiness
n. 性感
alexine
补体
