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1·This rapid origin and diversification of animals is often referred to as the Cambrian explosion.

这种迅速的动物起源和种类分化时期常常被称为“寒武纪大爆发”。

2·The Cambrian explosion involved rapid evolutionary diversification, followed by the extinction of many unique animals.

寒武纪大爆发涉及迅速的进化分化，随之而来的是许多独特动物的灭绝。

3·The third fossil formation containing both soft-bodied and hard-bodied animals provides evidence of the result of the Cambrian explosion.

第三个化石地层中既有软体动物，也有硬体动物，为寒武纪大爆发的结果提供了证据。

4·Quartz is quartz—a silicon ion surrounded by four oxygen ions—there's no difference at all between two-million-year-old Pleistocene quartz and Cambrian quartz created over 500 million years ago.

石英是石英——由四个氧离子围绕的硅离子——200万年前的更新世石英和5亿年前的寒武纪石英之间没有任何区别。

5·Will zoologists ever know the evolutionary sequences in the Cambrian explosion?

动物学家们会知道寒武纪大爆发时期的进化顺序吗？

6·Shortly after the Cambrian explosion, mud slides rapidly buried thousands of marine animals under conditions that favored fossilization.

寒武纪大爆发后不久，泥石流迅速将数千只海洋动物掩埋在有利于石化的条件下。

7·The Cambrian-Ordovician boundary set between D.

寒武系与奥陶系界线位于D。

8·It is overlain unconformably by the post Cambrian platform cover.

被后寒武纪地台沉积盖层不整合覆盖。

9·Internal genetic factors were also crucial in the Cambrian explosion.

内部遗传因素是还关键的在寒武纪爆炸。

10·Yunnan emerald deposit was found in (pre) Cambrian metamorphic rocks.

云南祖母绿矿床产于寒武系变质岩中。

(1)cambrian period寒武纪

(1)cambrian system寒武系

(1)cambrian explosion[生]寒武纪爆发

(1)middle cambrian中寒武世