“基底”的英语？

皮肤基底细胞basal cells of the skin一线性空间的每一基底包含同样数目的向量.Every basis of a linear space contains the same number of vectors.铀矿物也见于科姆波尔吉建造的基底层位中.Uranium minerals also occur in the basal beds of the kombolgie formation....

“基底”的拼音为：jī dǐ...