bitegminous
基本解釋
- 具雙珠被的
英漢例句
- The ovule is bitegminous and tenuinucellate.The archesporial cell locates under the nucellus epidermis, which develops into fuctional megasporocyte.
孢原細(xì)胞位於珠心表皮之下，直接起大孢子母細(xì)胞的功能。 - The ovule is bitegminous, crassinucellate and anatropous.The megaspore mother cell divides into linear megaspore terad after meiosis.
大孢子母細(xì)胞減數(shù)分裂形成線形排列的4個大孢子，郃點耑大孢子具功能。