例句與用法

1. It is a feature that distinguishes seeds from fruits
   種臍是種子區(qū)別于果實(shí)的特征。
2. Hilum ( pl . hila ) 1 . a scar on the testa of a seed marking the point at which it was attached to the ovary wall by the funicle
   種臍： 1是種子的外種皮上保留的一個痕跡，顯示種子與子房壁在此處靠珠柄連接。
3. These specimens of ruppia are characterized by possessing a small oval endocarp , smooth endocarp surface , distinct narrowly elliptic external depressions , distinct apical mucro , slightly curved seed shape and conspicuous globose hilum . a new species , r . yushensis sp . nov
   該新種的主要特征為內(nèi)果皮卵形、表面光滑、側(cè)面具兩個顯著的窄橢圓形凹陷、頂端具一個明顯的小尖突，以及種子頂端具顯著的球形膨大的種臍。
4. The size and shape of the seeds , and the position of the hilum are of no important systematic significance , but the protruding degree of the hilum , the shape of the testa cells and the pattern of their cell walls , particularly the appendages of the in ner side , are of important value in the phylogenetic consideration of the tribe hyoscyameae
   各屬植物的種子大小、形狀及種臍著生位置的系統(tǒng)學(xué)意義不大。但是，種臍突出與否、種子外種皮細(xì)胞形狀和周壁式樣，尤其是周壁內(nèi)側(cè)附屬物等性狀具有較大的分類學(xué)意義。