saddle bend是什么意思

网络释义

1)saddle bend,褶皱鞍形顶部2)upper apex of fold,褶皱顶部3)saddle fold,鞍状褶皱4)flat-topped fold,平顶褶皱5)lower apex of fold,褶皱下顶6)tip-line fold,尖顶褶皱