mastoid ridge
英
美
网络 乳突嵴
双语例句
- Fingerprint is a kind of flower patterns formed by mastoid ridge lines that grow on the cutis of finger tail end, which have the characteristics that a piece finger of each one is different and settling invariability for life.
指纹是手指末端正面皮肤上由乳头凸起的摩擦脊线形成的花纹，具有各人各指不同、终身稳定不变的特性。