例句 /

Hilum(pl. hila) 1.A scar on the testa of a seed marking the point at which it was attached to the ovary wall by the funicle.

Hilum(pl. hila) 1.A scar on the testa of a seed marking the point at which it was attached to the ovary wall by the funicle.

种脐:1是种子的外种皮上保留的一个痕迹,显示种子与子房壁在此处靠珠柄连接。