“内凹”用英语怎么说？

在接触点上,根毛细胞壁内凹.The root hair cell wall invaginates at the point of contact.这张桌子四周是雕刻的内凹边缘.The table has a recessed border carved into it.食人鱼,平头,方头, 子弹头, 椭圆, 内凹, 大草帽, 小草帽等.Piranhas head, bullet, elliptical, Neiao, big stra...

“内凹”的拼音为：nèi āo...