棘皮动物

In the late 1900's, research on echinoderms proided the initial eidence for the importance of phagocytic cells in reactions to foreign material.

在十九世纪末对于棘皮动物的研究获得了噬菌细胞对外来物质的反应的重要性的最初的证据。

Ocean acidification, which poses adverse effects on calcifying species such as corals, echinoderms, crustaceans, and mollusks as well as certain phytoplankton.

海洋酸化，这就造成了不利影响钙化物种如珊瑚，棘皮动物，甲壳类动物，和软体动物以及某些浮游植物。

Study the diversity of vertebrates: sponges, cnidarians, flatworms,nematodes, annelids, mollusks, arthropods, and echinoderms.

A2， B3， G3 研习无脊椎动物的多样性－海绵动物、腔肠动物、扁形动物、圆形动物、环节动物、软体动物、节肢动物及棘皮动物。

Large Crinoids held on to their extremities.

巨大的海百合收缩着肢体，它们是属于像海胆和海星一样的棘皮动物类的优雅生物。

Echinoderms:Echinoids,Crinoids,Asteroids,Ophiuroids,Holothuroids Sea Cucumbers

棘皮动物：（海胆类动物，海百合类动物，海星状动物，海蛇尾类动物，海参类动物

They are echinoderms, closely related to sea urchins.

它们是棘皮动物，密切相关的是海胆类。

They are echinoderms, closely related to sea urchins.

它们是棘皮动物类动物，有密切的关系是海胆。

They are echinoderms, closely related to sea urchins.

它们是棘皮动物，接近有关系的是海胆。

Sausage-shaped body, tentacles surrounding the mouth and ''.

身体''。'灵活'。''形如香肠的棘皮动物；触须分布在嘴和''。

These small, spiny echinoderms are found in oceans all over the world.

这些小的，多刺的棘皮动物在全世界海洋能找到。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。