查询词典 cretaceous

During their long evolutionary history, starting in the Lower Cretaceous, copepods spread over all the continents, as well as they successfully colonized about all the available water habitats of the Planet, becoming well adapted or specialized to very different salinity regimes, from marine and hypersaline waters to continental freshwater bodies, and to a wide range of temperature from the polar to the hot springs waters.

在长期进化史，最早始於早期的白垩纪，桡足类散布在各大洲，牠们不但成功地移植居住於地球上所有可利用的水域，而且从海洋与高盐度水域到大陆棚淡水的水体，变成容易适应或限定在不同盐度范围，从极区到热泉的水域具有宽广的温度范围。

Global correlation for strontium isotope curve in the Late Cretaceous of Tibet and dating marine sediments.

西藏晚白垩世锶同位素曲线的全球对比及海相地层的定年。

The cretaceous is the dinosaur life, but also the great changes of landscape.

白垩纪是恐龙生活的最后一个纪，也是地球景观发生巨大变化的时期。

In Australia, this happened about 60 million years ago in the Cretaceous Period.

在澳洲，约60万多年前发生在白垩纪。

Of or relating to the Cretaceous geologic era.

属于或关于地质上白垩纪的。

And Cretaceous in South Tibet was selected as the subject to investigate this relation in this article.

本文选择西藏南部白垩系为研究对象，对这一联系进行了针对性的研究。

According to different dimensions, the cretaceous groundwater basin can be divided into many groundwater flow systems.

摘要以不同的研究尺度，白垩系地下水盆地可以划分为若干地下水流系统。

The really strange thing is that there is absolutely no hint of anything happening at the end of the Cretaceous.

真正让人感到不解的是，在白垩纪时代所发生的一切变化却找不到任何线索。

The web found recently dates to the Cretaceous period. At that time, dinosaurs walked the earth.

最近发现的这张蜘蛛网是白垩纪的，那时候，地球上还有恐龙在行走。

Some of these animals changed little since Cretaceous times.

其中一些动物变化不大，因为白垩纪时代。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐