详细释义
Noun:
-
minute opening in the wall of an ovule through which the pollen tube enters
双语例句
- The micropyle was formed by the inner integument.
珠孔由内珠被形成。 - The development of the obturator and the micropyle correlates with that of the female gametophyte in P. amurense.
黄檗珠孔塞和珠孔的发育与雌配子体发育存在密切关系。
用作名词 (n.)
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