是一种比鹦鹉螺类软体动物更复杂的眼睛，工作原理像是针孔相机。

The snail's eye, a more sophisticated version of that of the nautilus mollusk, works rather like the aperture of a pinhole camera.

youdao

有关四腮目头足类的，以两对腮为特征，并包括有腔鹦鹉螺和许多化石的种类。

Of, relating to, or being a cephalopod of the order Tetrabranchiata, characterized by two pairs of gills and including the chambered nautilus and many fossil species.

youdao

有关四腮目头足类的，以两对腮为特征，并包括有腔鹦鹉螺和许多化石的种类。

Of, relating to, or being a cephalopod of the order Tetrabranchiata, characterized by two pairs of gills and including the chambered nautilus and many fossil species.

youdao