sacci

基本解释

The alveoli of both cap and sacci expand greatly, circumferentially, without any separation of radial components.
在发育中，花粉帽(近心部分) 和气囊的小泡皆大大的膨胀，但无任何放射状成分的分离。
Tapetal cells extend into locules surrounding many microspores during a stage of great vacuolation of microspore cytoplasm, expansion of sacci, and thickness increase of the exine.
此时气囊膨胀，花粉外壁亦加厚。关键词：气囊小泡，胼脂质，花粉外壁内层，外壁底层，小孢子，欧洲松，气囊，孢粉质接受粒，营养层，四分体，乌氏体。
fossa sacci lacrimalis
泪囊窝
fistula sacci lacrimalis
泪囊瘘
fornix sacci lacrimalis
[医] 泪囊穹窿