| 释义 |
〔radiolarian〕Any of various marine protozoans of the order Radiolaria, having rigid siliceous skeletons and spicules.放射虫:一种放射虫目的海生原生动物,骨骼和针骨为硅质〔sponge〕Any of numerous aquatic, chiefly marine invertebrate animals of the phylum Porifera, characteristically having a porous skeleton composed of fibrous material or siliceous or calcareous spicules and often forming irregularly shaped colonies attached to an underwater surface.海绵:一种水栖的海绵纲的无脊椎海生动物,其特征是具有同纤维物质或硅质或钙的针状物组成的多骨架,通常形成不规则的簇丛,贴在海底地面 |