In these animals the intracranial internal carotid artery forms from a dense network of numerous converging, small-caliber vessels. An analogous structure 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。
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。
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.
光子晶体是周期性介电结构，它能象周期性原子结构中的电子禁带一样，产生光子禁带。
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