趣英语 / ovule造句

ovule造句

The primary chalazal haustorium ramifies around the vascular tissues of the ovule.
初生合点吸器沿着胚珠的维管组织分支.

Seed development in most instances commences following fertilization of the ovule.
大多数种子的形成是从胚珠受精开始的.

Frequently the basal ovule, which is the last one to be fertilized would abort.
最后受精的基生胚珠经常败育.

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