bitegminous

基本解释

• 具双珠被的

同根派生

英汉例句

• The ovule is bitegminous and tenuinucellate.The archesporial cell locates under the nucellus epidermis, which develops into fuctional megasporocyte.
  孢原细胞位于珠心表皮之下，直接起大孢子母细胞的功能。
• The ovule is bitegminous, crassinucellate and anatropous.The megaspore mother cell divides into linear megaspore terad after meiosis.
  大孢子母细胞减数分裂形成线形排列的4个大孢子，合点端大孢子具功能。