前哺乳动物

Any of various herbivorous aquatic mammals of the genus Trichechus, having paddlelike front flippers and a horizontally flattened tail and found in warm coastal waters of Florida, northern South America, West Africa, and the Caribbean.

海牛一种海牛属食草性水生哺乳动物，长有蹼状前鳍，居中扁平的尾巴，产于美国佛罗里达州、南美洲北部、西非和加勒比海地区海岸温暖的水域中

Any of various mammals of the order Rodentia, such as a mouse, rat, squirrel, or beaver, characterized by large incisors adapted for gnawing or nibbling.

啮齿目动物：任一种有适于啃或咬的大前齿的啮齿目哺乳动物，如鼠、大家鼠、松鼠或狸

IRES elements are grouped in four classes based on the different structure and function.

前，依赖IRES元件翻译起始的RNA病毒在哺乳动物，无脊椎动物及植物中均有发现。

The monotremes split off about 166m years ago and the marsupials parted company with the placentals 148myears ago. That, however, was not news; the fossils tell a similar story.

在一亿六千六百万前单孔目动物就出现了物种分化且有袋动物脱离群体，而胎盘哺乳动物在一亿四千八十万年前出现类似情况。

In this, humans follow a pattern that is widespread in mammals: male hostility to a female's offspring from previous matings. In some??

在这种情况中，人类遵循哺乳动物中普遍存在的一种模式：雄性敌视雌性与其前配偶所生的子女。

In this, humans follow a pattern that is widespread in mammals: male hostility to a female's offspring from previous matings.

在这种情况中，人类遵循哺乳动物中普遍存在的一种模式：雄性敌视雌性与其前配偶所生的子女。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。