embryo sac的用法和样例:
例句
- Abnormal development was observed at tetrad and mature embryo sac.
在四分体和成熟胚囊时期观察到了异常发育现象。
- Starch grains present in the embryo sac and placenta are utilized by the embryo.
存在于胚囊和胎座中的淀粉粒为胚胎所利用。
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