哺乳动物的

The highly vascular fetal membrane that consists of the fused chorion and allantois, found adjacent to the eggshell in reptiles and birds and constituting the placenta in most mammals.

绒毛膜尿囊由融合的绒毛膜和尿囊组成的富含血管的胎膜组织，存在于爬行类动物和鸟类的蛋壳附近，并且构成大多数哺乳动物的胎盘

Sometimes gazelles can zig and zag out of reach and outlast their often short-winded pursuers.Not this time.

一只瞪羚为活命而拼命奔逃，通常瞪羚用急转弯的方式逃脱捕猎者的追杀，但这一次却最终未能躲过世界上速度最快的哺乳动物的捕杀。

Estrus,also oestrus:The periodic state of sexual excitement in the female of most mammals

&动情，动情周期：大多数哺乳动物的雌性产生的周期性的性冲动，在此期间内雌性具有排卵的优势，所以该期间最适合性交；刺激&

The characteristic Palaeocene faunaseems to have come and gone with the ancestors of modern mammals still skulking unchanged in their burrows.

那些独特的古新代的动物群一定是跟随着现代哺乳动物的老祖宗跑到巢穴里享受着偷欢的情趣，以至自身丝毫未变。

To spread the scientific knowledge among the people and care for their health, we try to do an experiment of eliminating mosquitoes to know the mosquito-repellent incenses and their bad ones on human being and environment.

我们从普及科学知识和关心人们利益出发，设想通过灭蚊实验及蚊香对哺乳动物的影响了解几种不同品牌的蚊香的灭蚊效果及其对人类与环境的负面影响。

Sexing technology is a very important research projects and directions in animal reproduction biology which can control the sex ratio by sperm or embryo sex determination.

性别控制技术已经成为繁殖生物学中重要的研究课题和研究方向，哺乳动物的性别控制是指通过对精子或胚胎的性别鉴定以达到调控子代性别的目的。

Japanese scientists say they've used genetic engineering to create mice that show no fear of felines, a development that may shed new light on mammal behavior and the nature of fear itself.

日本的科学家说他们利用基因工程培育了一只不会害怕的老鼠。这项进展可能会有助于对哺乳动物的行为和害怕这一天性的研究。

The re-recognition of AI and AIV, especially the susceptibility of mammal and the epidemic in man, and the rare fowl avian infected by influenza were also introduced and summarized.

介绍了近年来禽流感与禽流感病毒的变化以及对其的重新认识，特别是对哺乳动物的易感性与在人群中的流行。

The variation of AI and AIV was introduced in the recent years.The re-recognition of AI and AIV,especially the susceptibility of mammal and the epidemic in man,and the rare fowl avian infected by influenza were also introduced and summarized.

介绍了近年来禽流感与禽流感病毒的变化以及对其的重新认识，特别是对哺乳动物的易感性与在人群中的流行。

Sequence analysis showed that the BDNF gene of Asiatic Black Bear was highly conserved compared to those of human and giant panda, with an identity of 94.5% and 98.9%, respectively. The deduced amino acid sequence of the mature protein was found to be identical to those of all the reported mammalians. According to gene sequence alignment, the giant panda appeared to be phylogenetically closer to Asiatic Black Bear than the lesser panda.

在推导的多肽序列中，其成熟区氨基酸序列与所有已报道哺乳动物的完全一致；对亚洲黑熊及其相关物种BDNF基因序列的比较分析，发现大熊猫与包括黑熊在内的熊科动物亲缘关系更近，而与小熊猫较远。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。