n.棘皮动物
It is called an " Echinoderm", which means it is spiny-skinned. 被称为“棘皮类动物”，这意味着牠们具有多刺的皮肤。
Any aquatic mollusk, crustacean, or echinoderm that has a shell. 有壳的水生软体动物、甲壳动物或棘皮动物的统称。
The echinoderm biomass in the fine sediments area in higher, the species diversity in the coarse sediments area is higher. 细颗粒沉积区中生物量较高,而粗颗粒沉积区种类多样性较高。
The gamma ray value of reef bafflestone is higher than those of sparrenite and sparrudite , and lower than those of micritic limestone , wackstone , echinoderm grainstone and marlstone. 礁灰岩的自然伽马值高于亮晶砂、砾屑灰岩，而低于泥晶灰岩、棘屑灰岩、泥晶生屑灰岩、泥灰岩的放射性。
Advances on Chromosome Study of Echinoderm 棘皮动物染色体的研究进展
