查询词典 brachiopods

One of the paired, hinged shells of certain mollusks and of brachiopods.

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Shelly creatures such as trilobites and brachiopods, of whose ancestors there is little sign in the rocks, are suddenly everywhere.

像三叶虫和腕足类一样的贝壳类生物是谁的祖先在岩石中得到一点提示，这些东西到处都是。

Shelly creatures such as trilobites and brachiopods, of whose ancestors there is little sign in the rocks, are suddenly everywhere.

像三叶虫、腕足动物此般壳类动物的祖先没有在岩层中留下什么痕迹，但它们的遗迹却突然间比比皆是。

Mainly by the size of the distribution of sea lilies stems and small brachiopods and elastic.

主要由密集分布的大小不一的海百合茎及少量腕足类等生物碎屑组成。

Sponges, corals and brachiopods, however, cannot do this.

而海绵类、珊瑚类和腕足类动物则做不到这一点。

More than 90% of Permiangenera of sponges, corals and brachiopods vanished in the extinction.

由于个体种化石的的数量统计随着时间的推移而变化，研究生物灭绝的古生物学家们更倾向于对称为类的有相互联系的整个物种种群进行统计研究。

Sponges, corals and brachiopods, however, cannot do this.

而海绵类、珊瑚类以及腕足类生物却做不到这一点。

More than 90% of Permiangenera of sponges, corals and brachiopods vanished in the extinction.

高过百分之九十海绵类、珊瑚类以及腕足类生物在大灭绝中消失了。

More than 90% of Permian genera ofsponges, corals and brachiopods vanished in the extinction.

高过百分之九十海绵类、珊瑚类以及腕足类生物在大灭绝中消失了。

The relative sea level changes obviously controlled the evolution of brachiopods in the study area during this period.

此期该区腕足动物的演化明显受控于相对海平面变化。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。