鸟类的

The scientists examined the fossilized remains of three different kinds of two-legged dinosaurs, which are thought to be the ancestors of modern birds.

科学家们研究了三种不同的双腿恐龙的化石遗迹，这些双腿恐龙被认为是现代鸟类的祖先。

Herbivorous dinosaur with a pelvis like that of a bird.

骨盆的结构与鸟类的相似的食草恐龙。

There is currently no clear concensus in support of any of these hypotheses for the origin of bird flight.

因此，目前还没有明确的共识，在任何支持这些假设的起源，鸟类的飞行。

Researchers used the data to calculate each bird's daily location by longitude and latitude.

研究人员使用的数据来计算每个鸟类的日常位置的经度和纬度。

While I'm certainly fascinated and delighted by birds - as I am by all animals and even a few plants - I have to admit that I wrote the accounts of the birds in the book from memory.

在我被鸟迷住、欣喜不已的时候——就像我被所有动物甚至一些植物所吸引——我不得不承认我是凭记忆在描述书中的鸟类的。

Finally, a simple analysis was made on the origin of birds from a methodological point.

最后，就鸟类的起源从研究的方法论角度作了简单的分析。

Here the oceanside mountains sprout pineapples, coconuts and other tropical fruits, while the forested peaks are home to abundant animal and bird life.

这里靠海边的山地上盛产菠萝、椰子和其它热带水果，而那些树木茂盛的山顶却是许多动物和鸟类的家园。

The 1.8m-long predator was a dromaeosaurid - a family of theropod dinosaurs from which modern birds descended.

体长1.8米的这种肉食性恐龙是驰龙的一种，属兽脚亚目食肉恐龙家族，是现代鸟类的祖先。

As an analogy, we might say that our trichromatic color vision can be represented in a triangle, whereas their tetrachromatic color vision requires an additional dimension, giving a tetrahedron or triangular pyramid.

让我们做个类比，如果用一个三角形来代表人类的三色色觉，那麽鸟类的四色色觉就需要多一个空间维度来代表，得到的就是四面体或三角锥体。

Distribution difference of the birds in the reserve occurred not only on level pattern but also on an altitudinal gradient.

保护区鸟类的分布，不仅在水平格局上存在一定的地域差异，而且在海拔梯度上也有明显的差异。

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