| 释义 |
cambrian period短语¹¹⁴⁴⁶⁷⁺⁴
基本英英近义反义例句例句
寒武纪
Noun:
from 544 million to about 500 million years ago; marine invertebrates近义词 Cambrian地寒武纪的…
This is the first time in the study and mapping of the Cambrian in South China.这种定量的岩相古地理图在中国南方寒武纪还是首次出现。
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。 Darwin argued that the question might be answered in future by the discovery of fossils in rocks that formed before the Cambrian period, in Precambrian times.
达尔文认为，也许未来在早于寒武纪或前寒武纪的地层中发现化石，才能回答这个问题。 wetalent
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。 yeeyan
It happened at a late stage of Cambrian Period;
寒武纪晚期发生过一次； blog.sina.com.cn
Sedimentary type deposits usually formed during late Sinian to Cambrian period.
沉积型铅锌矿主要形成于晚震旦世—寒武纪； chemyq
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。 cnki |