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.
孢原細胞位于珠心表皮之下，直接起大孢子母細胞的功能。 - The ovule is bitegminous, crassinucellate and anatropous.The megaspore mother cell divides into linear megaspore terad after meiosis.
大孢子母細胞減數分裂形成線形排列的4個大孢子，合點端大孢子具功能。