Cambrian Period翻译

Cambrian Period的基本解释

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寒武纪：地质年代的一个时期，距今约5.4亿年前，是古生代的第一个时期，以生物多样性的爆发和无脊椎动物的出现而著名。

例句

During the Cambrian Period, 500 million years ago, worm-like creatures were evolving into fish-like creatures.在5亿年前的寒武纪，似蠕虫生物逐渐演化成似鱼生物。
The basement strata and the migmatite, however, were formed much later, about Cambrian Period and early palaeozoic era.但其基底地层和混合岩形成时代较晚，为寒武纪和下古生代。
Afterward, global large-scale massive volcanic activity in Permian Period generally brought about metamorphism whole middle Cambrian Period volcanic sediment rock in research area.二叠纪全球性大规模火山活动，致使区内整个中寒武纪的火山沉积岩普遍发生变质。

短语

Pre-Cambrian Period 前寒武纪 ; 先寒武纪前时代
THE E Cambrian Period 寒武纪
Middle Cambrian Period 中寒武纪
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