In these animals the intracranial internal carotid artery forms from a dense network of numerous converging, small-caliber vessels. An analogousstructure is rarely found in humans.
在这些动物身上颅内颈内动脉的形式从一个密集网络的许多收敛，小口径血管。
2
Analogous Descrbing structures that are apparently similar (structurally or functionally) but have a different evolutionary origin, and thus a different embryological origin and structure.
功能上相同，有时形状也相似，但其来源和基本结构不同的器官。
3
Photonic crystals were periodic optical structures that were capable of generating photonic band gaps, analogous to the way of electronic band gaps generated by periodic atomic structure.