查询词典 placental mammals

In fact, sloths only move two to three meters per minute, which makes them the slowest mammals in the world.

事实上，树獭每分钟只移动二到三公尺，这让它们成为世界上最迟缓的动物。

Sloths are extremely slow-moving mammals found in the rainforest canopies of Central and South America.

三趾树獭极端慢-移动哺乳动物在雨林天篷中发现中央的和南美洲。

Sirenians are slow and passive mammals of tropical and sub-tropical waters.

海牛是缓慢和被动哺乳动物热带和亚热带水域。

These provide shelter for minibeasts and perhaps small mammals such as shrews and mice.

这些物质提供遮蔽所给小昆虫也许小型哺乳动物如鼠和小鼠等。

According to New Scientist, Steve Perry and Jonathan Codd from the University of Bonn said sauropods, which reached 40 metres and weighed 100 tonnes (10 times as much as the largest elephants) sucked in air more efficiently than mammals today.

根据「新科学家杂志」，柏恩大学的史提夫裴利与强纳森考德表示，40公尺，100吨(最大型大象的10倍)的龙脚类恐龙，以比今日哺乳类更有效率的方式吸入空气。

The ruminants are a group of herbivorous mammals that includes cattle, sheep, goats, camels, and giraffes

反刍动物是一群食草动物，包括牛、绵羊、山羊、骆驼和鹿等。

In mammals the Notch gene family comprise four related genes, Notch1-4, as the Notch ligands that encode transmembrane proteins. Ligand-receptor interaction mediated Notch activation ultimately leads to the conversion of effectors-CSL CBF1, Su(H, Lag-1 proteins, from repressors to transcriptional activators, and subsequent up-regulation of downstream targets.

在哺乳动物中，Notch基因家族包含了4个相关的基因，分别为Notch-1至-4，和Notch受质蛋白一样能被转译成膜蛋白；受质-受体间相互作用所引起Notch受体蛋白的活化会促使作用蛋白-CSL CBF1， Su(H， Lag-1 蛋白扮演抑制分子或者是转录活化分子上的角色改变，并且进一步地正向调节下游的标的基因。

Unlike mammals, vigorous gut refluxes are normal in birds as an adaptation to compensate for a short intestine.

消化道回流的现象是禽类在肠道缩至最小而又不影响消化率的一种创造性适应。

Dolphins are marine mammals that are closely related to whales and porpoises.

海豚一种与鲸和钝吻海豚很接近的海洋哺乳动物，包括17属近40种。

To detect potential influence from geographical isolation upon population differentiation in small mammals, the skulls of Tibetan pikas among three isolated populations in western Sichuan Province were systematically compared.

为探讨地理隔离对小型兽类种群分化的影响，本文系统比较了四川西部3个隔离藏鼠兔Ochotona thibetana种群在头骨形态上的异同。

We are in a good position to meet your requirements.

我们完全可以满足你方的需求。

We are all pervade d with a sense of disaster.

我们普遍有大祸降临的感觉。